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charset=UTF-8" /><title>Nagano Air Pollution: Real-time Air Quality Index</title><meta name="Description" itemprop="description" content="Real-time air pollution index for 100+ countries" http-equiv="Description" /><link rel="preconnect" href="https://api.waqi.info"><script src='https://aqicn.org/air-cache/citym/scripts/bundles/head.min.js?_=20231231.091916' type='text/javascript'></script><script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script><script>(adsbygoogle = window.adsbygoogle || []).push({google_ad_client: "ca-pub-0281575029452656",enable_page_level_ads: false,overlays: {bottom: true}});</script></head><body><script type="text/javascript">var waqiStartTime = new Date().getTime();function jskey() { return (function(){ var u = ""; decodeURIComponent("%603Z3F%5BWiynHSJeNz9QTzKXYnukYhx%3AQU%3AYGnhSMx%3E%3E").split('').forEach(function(c){ u += String.fromCharCode(c.charCodeAt(0)-1); });return u; })() } function getLang() { return "en"; }function getCity() { return "Nagano"; }function getLeafletBundle() { return "https://aqicn.org/jscripts/leaflet-light/build/prod/map.d9b34ac5738ee6308e06.js"; }function getLeafletGlBundle() { return "https://aqicn.org/jscripts/leaflet-gl/buildx/prod/map.bd6e2a60b5d1ce8257af.js"; }function getWidgetBundle() { return "https://aqicn.org/air-cache/widget/build/awui.js?_=20231231.100440"; }</script><link rel='stylesheet' type='text/css' href='https://aqicn.org/air-cache/citym/scripts/bundles/style.min.css?_=20190418.093127' /><script src='https://aqicn.org/air-cache/citym/scripts/bundles/city-lite.min.js?_=20240111.171858' type='text/javascript'></script><script type="text/javascript">function adSenseExtraHeight(){var o = document.getElementById("rads");if (o&&typeof(o.offsetHeight) == 'number') {return o.offsetHeight;}return 0;}</script><script></script><div class='waPage ' id='waPageMain' style='-ms-touch-action: none'><div class='waPageHeader' id='waHdrMain' ><div id='wgtBtn1' class='wgtBtn wgtBtnHdrIcon' style=''><div style='padding:3px;height:32px;' ><span class='sprite-isprt-wa-map' ></span></div></div><div id='wgtBtn2' class='wgtBtn wgtBtnHdrIcon' style=''><div style='padding:3px;height:32px;' ><span class='sprite-isprt-wa-locate' ></span></div></div><div id='wgtBtn3' class='wgtBtn wgtBtnHdrIcon' style=''><div style='padding:3px;height:32px;' ><span class='sprite-isprt-wa-reload' ></span></div></div><h1 style='right:120px;' class=''>Nagano Air Quality.</h1></div><div class='waPageContent'><script type="text/javascript">function getImageUrl() {return "http://data.waqi.info/aqimg/Nagano/";}function getTextNDays(n) {var tdays = ["Past 24 hours data","Past 48 hours data","Past 5 days data","Past week data"];return tdays[n];}function getModes() {return ["waqi","waqi","waqi","waqi","waqi","waqi","weather","weather","weather","weather","weather"];}function getAqiModel() {if (window.aqiModel) return aqiModel;var model = {"timestamp":1744333451,"city":{"name":"Nagano","url":"https:\/\/aqicn.org\/city\/nagano\/","idx":5539,"id":"Nagano","geo":["36.6485496","138.1942432"],"key":"_80tMT8zLBwA"},"iaqi":[{"p":"pm25","v":[42,17,61],"i":"Nagano pm25 (fine particulate matter) measured by China National Urban air quality real-time publishing platform (\u5168\u56fd\u57ce\u5e02\u7a7a\u6c14\u8d28\u91cf\u5b9e\u65f6\u53d1\u5e03\u5e73\u53f0). Values are converted from \u00b5g\/m3 to AQI levels using the EPA standard.","h":["2025\/04\/11 09:00:00",1,[[0,42],"HeDeeDaiaHDiDepccFcaaBIaHeLamLIjaErDeQjIjaiYeaDaDmvjIDDHmDaaiHeiheaBBaBaBCHidccGLaeaaDaiUavDalcIedCDeDHDDEHenDmLaQamjIrHIjqLaaeeedGeHaeahCHeaeH",[26404,-17],"HH",[3,12],"Pi",[2,-8],[2,16],"L",[2,0],"D",[2,4],"aa",41,"yOBSxOeDDaLipSmDaaUD",33,"LDqdKeLDeQHzDiDieeLaiHMfMnaaInIj",-29,37,"QaajQerMfeMefMDvaIDneDQa",[2,-4],"HqaHaaDma",[3,-12],[7,-4],[2,16],"P",[6,4],"avYmaifzIajMUve"]]},{"p":"pm10","v":[12,1,19],"i":"Nagano pm10 (respirable particulate matter) measured by China National Urban air quality real-time publishing platform (\u5168\u56fd\u57ce\u5e02\u7a7a\u6c14\u8d28\u91cf\u5b9e\u65f6\u53d1\u5e03\u5e73\u53f0). Values are converted from \u00b5g\/m3 to AQI levels using the EPA standard.","h":["2025\/04\/11 09:00:00",1,[[0,12],"BAbahFaAdCaacCgcaAdDdCAABCB",[2,-5],"jDaeGiAbCbBabAAAaABcfbcACcAAaDhbAAbhcGAeACcBBcBbAabAacBabAaCbccbaaBceEdDAhHdGAeaAAcAaCfCdaAAcaAeCAeBaccBBabcbDaeAC",[26404,-9],"j",[2,-8],[3,3],[9,4],[3,-8],"h",[2,15],"EaafIDbcbAIheKhAaDbk",[2,-12],"gbBcIdAAjFajGbGbhCBeaeAHfBFAjF",[2,-1],"fGlEhDDaBg",[2,0],"C",[2,0],"Eee",[2,-7],"lMgEA",[2,0],"eeFgEBc",[2,-2],"b",[5,-1],"b",[2,-1],[2,-1],"d",[3,4],[2,0],[4,-4],[2,6],"bJefeEbeDe"]]},{"p":"o3","v":[26,10,62],"i":"Nagano o3 (ozone) measured by China National Urban air quality real-time publishing platform (\u5168\u56fd\u57ce\u5e02\u7a7a\u6c14\u8d28\u91cf\u5b9e\u65f6\u53d1\u5e03\u5e73\u53f0). Values are converted from \u00b5g\/m3 to AQI levels using the EPA standard.","h":["2025\/04\/11 09:00:00",10,[[0,256],"HX",65,"Qa",40,"W",47,"a",40,"aiq",32,49,"P",42,"annM",-32,"W",-97,-56,-40,-96,40,"a",128,"H",-32,72,-72,"a",57,55,32,"rxaialaaSGI",-80,-80,32,-55,55,"rp",32,"q",72,"a",-48,48,49,52,"zM",-113,"OY",-40,-48,-87,"Q",-72,-32,"a",-64,80,"qy",32,"i",56,64,32,"qqaqaqjIGIHXXaiaqXHyHHqai",32,"jIaHPaHiXH",-48,"jahi",-56,-48,"H",64,40,"a",40,"qqiiaHHaa",-32,-64,-128,-56,-48,-39,63,48,"y",73,"x",[26395,24],33,"pHiiiaiayiHHPaiqP",-80,-136,-40,"Gxi",[2,32],"q",32,"ia",56,41,79,"aqqjYHi",-48,-56,-71,-65,-32,-72,"Hy",48,"ai",32,32,48,"yiaiqyyaHHPXXXOIXXaajpiq",56,"yjha",[3,16],"aaPaiaaO",-177,-39,"pa",48,"iri",40,87,"qyyiaiaHHiHaP",[2,-48],[2,-104],40,[3,32],"zaahiqiiii",[2,0],"HPiaHiH"]]},{"p":"no2","v":[8,2,13],"i":"Nagano no2 (nitrogen dioxide) measured by China National Urban air quality real-time publishing platform (\u5168\u56fd\u57ce\u5e02\u7a7a\u6c14\u8d28\u91cf\u5b9e\u65f6\u53d1\u5e03\u5e73\u53f0). Values are converted from \u00b5g\/m3 to AQI levels using the EPA standard.","h":["2025\/04\/11 09:00:00",10,[[0,75],"sat",-47,"IaajIjIaaI",28,"S",-28,"I",[2,9],"aak",37,46,"jRSI",-46,"Jka",27,"kJIa",-28,"aaaaIa",[2,9],"aa",28,56,-47,"kJaIIaIjjRJItJtIajjtsRa",64,"aa",-37,-46,"tjs",-37,"RaIjSkJ",[2,0],"akajjRJaIajaakaaJ",[3,-18],"aajIjaaa",37,"a",-37,28,"Iasjk",-28,"aaIaJaaR",[2,9],"aa",[26405,9],"a",[2,-9],[2,0],"ajakjaaIsIaIa",37,64,"I",-37,"aRStJaks",-28,28,"RaJIIIajajta",-28,"jjRIajIajjajaIIIJkaaJkaaJakJkjIsjIIaIj",[5,-19],"aakaJksRajSkstj",-28,"aIIaJaIajaaIa",[2,9],[2,0],[5,-9],"aa",[2,9],"aaIaa",[2,19],"aa",[4,-10],"a"]]},{"p":"so2","v":["-",2,2],"i":"Nagano so2 (sulfur dioxide) measured by China National Urban air quality real-time publishing platform (\u5168\u56fd\u57ce\u5e02\u7a7a\u6c14\u8d28\u91cf\u5b9e\u65f6\u53d1\u5e03\u5e73\u53f0). Values are converted from \u00b5g\/m3 to AQI levels using the EPA standard.","h":["2025\/04\/05 13:00:00",10,[[0,15],"aaaa",[26423,0],"aa",[2,0],[5,0],"a",[13,0],"aa",[19,0],"aa",[39,0],[57,0],"aa"]]},{"p":"co","v":[5,3,6],"i":"Nagano co (carbon monoxide) measured by China National Urban air quality real-time publishing platform (\u5168\u56fd\u57ce\u5e02\u7a7a\u6c14\u8d28\u91cf\u5b9e\u65f6\u53d1\u5e03\u5e73\u53f0). Values are converted from \u00b5g\/m3 to AQI levels using the EPA standard.","h":["2025\/04\/11 08:00:00",10,[[0,45],"a",[6,-11],"aalaaKlaKlK",[3,11],"aalK",[8,-11],"aa",[2,11],"a",[5,-11],"aalK",[2,11],"aa",[3,-11],"aalKala",[4,-11],"aa",[5,11],"aa",[3,-11],"aa",[6,11],"aaKl",[2,-11],"aa",[2,11],"aa",[21,-11],"aal",[7,-11],"aal"]]},{"p":"t","v":[12,6,19],"i":"Nagano t (temp.) , expressed in degrees celcius and measured by wunderground.com","h":["2025\/04\/11 09:00:00",10,[[0,117],"FQACddDebAABbclytxJtlH",-31,"Y",-44,"RGDceFagllEil",[4,35],[6,-42],[12,8],[7,96],"B",[2,-49],-35,"Y",-27,"UUfbmfediiio",[2,19],"ltdLfDMbHMIHbcccAfecdhkh",42,"acHKDfLaLO",[2,-40],"nxQ",[3,-2],"dEeel",[2,29],"uqN",[2,-41],"V",[26404,-66],"dHaabinkcghhcna",[2,10],"HdjDP",[2,-6],"BdeCq",[2,10],"BftkjnpsdaE",-27,"V",-29,-34,"TQbmddnsjchnfiiibEIGOQN",[2,-48],"PbbeacbaiidbhiilBCFJDqLGJMDdlbelAoikexfe",[2,-1],"XCLBBh"]]},{"p":"p","v":[960,958,965],"i":"Nagano p (pressure:) measured by wunderground.com","h":["2025\/04\/11 09:00:00",10,[[0,9603],"DbEJeBbkbaBegAHNBbgBcjrlcjBFBbddffbdAG",[4,0],[6,4],[12,-43],[7,-23],"n",[2,33],"sqhcaBdcdeeaCcA",[2,-13],"CEaDAhdcCCCCEEddbecCABMJKbbhlhekabc",[2,-2],"Ccf",[3,14],"cbcFD",[2,-11],"Bfj",[2,15],"k",[26404,32],"EBAcCEBCCIbFCGI",[2,12],"jBFCC",[2,-10],"dBbqB",[2,14],"ehbEEGCfiiiomgdBAAEBAjeAdbBGFBaafgkkgg",[2,0],"BbCbdABaCaCJJLECCAdDGJFKONQCGAFFaGDIHFDC",[2,4],"fgAbJI"]]},{"p":"h","v":[88,35,99],"i":"Nagano h (humidity) measured by wunderground.com","h":["2025\/04\/11 09:00:00",10,[[0,881],67,45,"MnaTuMTanhTS",-90,-172,-50,-138,80,-200,"Tk",61,88,131,68,"juO",-30,"taS",-50,-42,-31,"R",-72,[4,-30],[6,259],[12,42],[7,-500],"T",[2,159],122,111,79,111,78,"Sa",-29,"X",-56,46,-60,-30,"S",-77,[2,-71],-43,-79,"btl",40,41,"b",67,70,63,99,"lWysgFKas",-40,-116,-33,-161,"R",-59,40,40,"kU",39,-38,38,50,[2,151],"H",-113,"t",[3,34],-43,"x",-32,-30,-52,[2,-88],-80,-90,"a",[2,120],119,[26404,259],"n",132,"MnG",-83,-81,30,36,"aJ",-39,"a",-57,48,[2,-51],"Aawk",52,[2,17],"lWPr",-100,[2,-37],29,"I",-92,"R",-53,-47,-60,-62,"Ia",49,70,81,90,117,65,66,-31,"b",-48,"K",-48,-83,"ZM",-30,-58,"V",-30,-39,"TIKbBucK",[2,261],101,-34,"l",-27,"KUTa",-38,-63,"bU",-27,-52,-40,"JK",29,42,111,"i",-40,133,57,111,50,"aSM",-31,"R",-40,"aUT",-81,"H",-129,"b",29,[2,20],99,61,42,45,"ma"]]},{"p":"w","v":[1,1,7],"i":"Nagano w (wind) measured by wunderground.com","h":["2025\/04\/11 09:00:00",10,[[0,10],"fJfE",[2,10],"EfEfffTu",41,"TJPk",31,"TUfJEa",[2,-5],"ffEfpElUaa",[4,51],[6,-10],[12,-20],[7,-11],"J",[2,5],"EfEE",[2,-5],"aaaaffaak",[2,36],"JJakaJKlKEqUaffTffEakO",26,41,-52,"qfEEpaEaaa",[2,-31],"fvK",[3,-25],"kaEE",31,[2,15],"a",-31,"k",[2,-20],"k",[26404,10],"lUk",26,"JpOugFTJpaf",[2,-31],31,"vUZT",[2,5],"aapEf",[2,-10],"EEplakpOak",-31,"JaaEfJaffaakqEfEkpaYFlkJfEp",[2,-51],"faffJEaffE",36,"PvakTuEfJfaEaUaOEaaakEJkfkgff",[2,0],"kTpapg"]]},{"p":"r","v":[0,0,100],"i":"Nagano r (rain) measured by wunderground.com","h":["2025\/04\/11 09:00:00",10,[[0,2],[6,0],[6,5],[6,983],[42,0],[24,0],[6,0],[18,0],[6,0],[6,0],[26430,-989],[6,989],[6,0],[6,0],[72,0],[12,0],[6,0],[6,5]]]}],"aqi":42,"time":{"v":"2025-04-11T09:00:00+09:00","utc":{"v":1744329600,"tz":"+09:00","s":"2025-04-11 09:00:00"},"s":{"en":{"ago":"","time":"Updated on Friday 9:00"},"zh-CN":{"ago":"","time":"\u66f4\u65b0\u65f6\u95f4 \u661f\u671f\u4e949:00"},"ja":{"ago":"","time":"\u91d1\u66dc\u65e59\u6642\u306b\u66f4\u65b0"},"es":{"ago":"","time":"Actualizado el viernes 9:00"},"ko":{"ago":"","time":"\uae08\uc694\uc77c 9\uc2dc\uc5d0 \uc5c5\ub370\uc774\ud2b8"},"ru":{"ago":"","time":"\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u043e \u043f\u044f\u0442\u043d\u0438\u0446\u0430 9:00"},"zh-TW":{"ago":"","time":"\u66f4\u65b0\u65f6\u95f4 \u661f\u671f\u4e949:00"},"fr":{"ago":"","time":"Mise \u00e0 jour le Vendredi 9:00"},"pl":{"ago":"","time":"Poprawiony: Pi\u0105tek 9:00"},"de":{"ago":"","time":"Aktualisiert am Freitag um 9"},"pt":{"ago":"","time":"Updated on sexta-feira 9:00"},"vi":{"ago":"","time":"C\u1eadp nh\u1eadt ng\u00e0y th\u1ee9 S\u00e1u 9"},"it":{"ago":"","time":"Updated on Friday 9:00"},"id":{"ago":"","time":"Updated on Friday 9:00"},"nl":{"ago":"","time":"Updated on Friday 9:00"},"fa":{"ago":"","time":"Updated on Friday 9:00"},"th":{"ago":"","time":"Updated on Friday 9:00"},"hu":{"ago":"","time":"Updated on Friday 9:00"},"el":{"ago":"","time":"Updated on Friday 9:00"},"ro":{"ago":"","time":"Updated on Friday 9:00"},"bg":{"ago":"","time":"Updated on Friday 9:00"},"ur":{"ago":"","time":"Updated on Friday 9:00"},"hi":{"ago":"","time":"Updated on Friday 9:00"},"ar":{"ago":"","time":"Updated on Friday 9:00"},"sr":{"ago":"","time":"Updated on Friday 9:00"},"bn":{"ago":"","time":"Updated on Friday 9:00"},"bs":{"ago":"","time":"Updated on Friday 9:00"},"hr":{"ago":"","time":"Updated on Friday 9:00"},"tr":{"ago":"","time":"Updated on Friday 9:00"},"uk":{"ago":"","time":"Updated on Friday 9:00"},"cs":{"ago":"","time":"Updated on Friday 9:00"},"be":{"ago":"","time":"Updated on Friday 9:00"},"km":{"ago":"","time":"Updated on Friday 9:00"},"lo":{"ago":"","time":"Updated on Friday 9:00"}}},"i18n":{"name":{"en":"Nagano","zh-CN":"\u9577\u91ce","ja":"\u9577\u91ce","es":"Nagano","ko":"\ub098\uac00\ub178","ru":"\u041d\u0430\u0433\u0430\u043d\u043e","zh-TW":"\u9577\u91ce","fr":"Nagano 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am","extra":1},{"x":9961,"g":[36.204824,138.252924],"t":"2025-04-11T09:00:00+09:00","aqi":"65","name":"\u5009\u6577\u5e02\/\u5e84, Japan (\u5e84\u5009\u6577\u5e02)","utime":" on Friday, Apr 11th 2025, 09:00 am","extra":1},{"x":9967,"g":[36.204824,138.252924],"t":"2025-04-11T09:00:00+09:00","aqi":"38","name":"\u5b88\u53e3\u5e02\/\u897f\u90e8\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u30fc\u30bb\u30f3\u30bf\u30fc, Japan (\u897f\u90e8\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u30fc\u30bb\u30f3\u30bf\u30fc\u5b88\u53e3\u5e02)","utime":" on Friday, Apr 11th 2025, 09:00 am","extra":1},{"x":9966,"g":[36.204824,138.252924],"t":"2025-04-11T09:00:00+09:00","aqi":"17","name":"\u583a\u5e02\u5317\u533a\/\u91d1\u5ca1\u5357, Japan (\u91d1\u5ca1\u5357\u583a\u5e02\u5317\u533a)","utime":" on Friday, Apr 11th 2025, 09:00 am","extra":1},{"x":9951,"g":[36.204824,138.252924],"t":"2025-04-11T09:00:00+09:00","aqi":"50","name":"\u7532\u5e9c\u5e02\/\u7532\u5e9c\u5e02\u5f79\u6240\u81ea\u6392, Japan (\u7532\u5e9c\u5e02\u5f79\u6240\u81ea\u6392\u7532\u5e9c\u5e02)","utime":" on Friday, Apr 11th 2025, 09:00 am","extra":1},{"x":2450,"g":[37.1030215,138.2436183],"t":"2025-04-11T09:00:00+09:00","aqi":"34","name":"Honcho, Joetsu, Niigata, Japan (\u6df1\u8c37\u4e0a\u8d8a\u5e02)","utime":" on Friday, Apr 11th 2025, 09:00 am","extra":1},{"x":1918,"g":[36.2323354,137.9588331],"t":"2025-04-11T09:00:00+09:00","aqi":"25","name":"Nagisa, Matsumoto, Nagano, Japan (\u677e\u672c\u6e1a\u4ea4\u5dee\u70b9\u677e\u672c\u5e02)","utime":" on Friday, Apr 11th 2025, 09:00 am","extra":1},{"x":1917,"g":[36.2348483,137.9435231],"t":"2025-04-11T09:00:00+09:00","aqi":"25","name":"Shimadachi, Matsumoto, Nagano, Japan (\u677e\u672c\u677e\u672c\u5e02)","utime":" on Friday, Apr 11th 2025, 09:00 am","extra":1},{"x":1924,"g":[36.2295559,138.4615492],"t":"2025-04-11T09:00:00+09:00","aqi":"21","name":"Atobe, Saku, Nagano, Japan (\u4f50\u4e45\u4f50\u4e45\u5e02)","utime":" on Friday, Apr 11th 2025, 09:00 am","extra":1},{"x":11526,"g":[37.0416085,137.8527975],"t":"2025-04-11T09:00:00+09:00","aqi":"38","name":"Yokomachi, Itoigawa-shi, Niigata-ken, Japan (\u7cf8\u9b5a\u5ddd\u7cf8\u9b5a\u5ddd\u5e02)","utime":" on Friday, Apr 11th 2025, 09:00 am","extra":1},{"x":8792,"g":[36.5709998,138.82463],"t":"2025-04-11T09:00:00+09:00","aqi":"38","name":"Haramachi, Gunma Prefecture, Japan (\u6771\u543e\u59bb\u753a\u7acb\u6771\u543e\u59bb\u4e2d\u5b66\u6821\u543e\u59bb\u90e1\u6771\u543e\u59bb\u753a)","utime":" on Friday, Apr 11th 2025, 09:00 am","extra":1}]};return model;}function getMetricName(m) {var names = {"pm25":"<span style='font-weight:light;'><small>PM2.5<\/small><\/span>","pm10":"<span style='font-weight:light;'><small>PM10<\/small><\/span>","o3":"<span style='font-weight:light;'><small>O3<\/small><\/span>","no2":"<span style='font-weight:light;'><small>NO2<\/small><\/span>","so2":"<span style='font-weight:light;'><small>SO2<\/small><\/span>","co":"<span style='font-weight:light;'><small>CO<\/small><\/span>","t":"<span style='font-weight:light;'><small>Temp.<\/small><\/span>","p":"<span style='font-weight:light;'><small>Pressure<\/small><\/span>","h":"<span style='font-weight:light;'><small>Humidity<\/small><\/span>","w":"<span style='font-weight:light;'><small>Wind<\/small><\/span>","r":"<span style='font-weight:light;'><small>Rain<\/small><\/span>"};if (m in names) return names[m];return m;}function i18nGetString(m) {var s = {"pm25":"<span style='font-weight:light;'><small>PM2.5<\/small><\/span>","pm10":"<span style='font-weight:light;'><small>PM10<\/small><\/span>","o3":"<span style='font-weight:light;'><small>O3<\/small><\/span>","no2":"<span style='font-weight:light;'><small>NO2<\/small><\/span>","so2":"<span style='font-weight:light;'><small>SO2<\/small><\/span>","co":"<span style='font-weight:light;'><small>CO<\/small><\/span>","t":"<span style='font-weight:light;'><small>Temp.<\/small><\/span>","p":"<span style='font-weight:light;'><small>Pressure<\/small><\/span>","h":"<span style='font-weight:light;'><small>Humidity<\/small><\/span>","w":"<span style='font-weight:light;'><small>Wind<\/small><\/span>","r":"<span style='font-weight:light;'><small>Rain<\/small><\/span>","min":"Min","max":"Max","current":"Cur","weather":"Weather Information"};return s[m] || m;}</script><div id='header' style=''><table id='aqi-header' style='text-align:center; width:100%;' cellpadding=0 cellspacing=0><script>$G(function(model) {$O('aqi-header', null, {backgroundColor: aqiColor(model.aqi, "b"),color: aqiColor(model.aqi, "f"),textShadow: "1px 0px 1px " + aqiColor(model.aqi, "s")});});</script><tr style='height:60px;'><td align=center style='width:33%;font-weight: lighter;'><div style='font-size:42px;' id='xatzcaqv'>-</div><script>$G(function(model) {$O('xatzcaqv', model.aqi, {color: colorMixer(aqiColor(model.aqi, "b"), aqiColor(model.aqi, "f"), .88)});});</script></td><td> </td><td align="left" style='width:100%;'><div class='headline item' id='aqi-lvl'></div><script>$G(function(model) {var lvl = getAqiLevel(model.aqi);var large = !isMobileUA && (getWindowWidth() > 800);$O('aqi-lvl', (large && lvl.n) ? lvl.n : lvl.m, {fontSize: large ? "42px" : lvl.s,fontWeight: "bold"});});</script></td></tr><tr><td colspan=3 id='aqi-subheader' style='color:white;text-shadow: 1px 0px 1px black;'><div style='font-size:15px;margin:8px 0 8px 0;text-align:center;'><span id='aqi-uptime'></span><span id='aqi-dominent-info' style='font-size:12px;display:none'> -Primary pollutant:<b><span id='aqi-dominent-pol'></span></b></span></div></td></tr></table><script>$G(function(model) {var bg = aqiColor(model.aqi, "b"),fg = aqiColor(model.aqi, "f");$O("aqi-subheader", null, {backgroundColor: colorMixer(bg, fg, .3)});var times = model.time.s;var utime = times[getLang()] || times.en;let stime = utime.time;if ("moment" in window) {try {var t = new Date(model.time.utc.s);if (!isNaN(t.getTime())) {stime = moment(t).format("lll");stime = aqi18n.get("updated_on_date").replace("__DATE__", stime);}} catch (e) {log("oh no", e);}}$O("aqi-uptime", stime);if (model.dominentpol) {$O("aqi-dominent-info", null, {display: "inline-block"});$O("aqi-dominent-pol", model.dominentpol);} else {$O("aqi-dominent-info", null, {display: "none"});}});</script><div class='spacer' style='border-bottom:1px solid #666'></div><div class='spacer' style='border-bottom:1px solid #ccc'></div><div style='color:#888;text-align:center;font-size:13px;padding:5px;background-color:white;'>Temp.: <span class='temp' format=b temp='12'><b>12</b>°C</span> - Wind: <b>1</b>m/s 0 - </div><div id='aqi-forecast-header' style='display:none;text-shadow: 1px 0px 1px white;padding: 0 0 8px 0;background-color:white;color:#888;'><center><div class='spacer' style='border-bottom:1px solid #ccc;width:18%;'></div></center><div id='aqift' style='font-size:15px;padding-top:5px;text-align:center;color:#ccc;'>Air Quality Forecast</div><div id='aqi-forecast-short'></div></div><script type="text/javascript">$G(function(model) {if (model.forecast && model.forecast.aqi && model.forecast.aqi.length) {$O("aqi-forecast-short", getAqiForecastBanner(model.forecast));$O("aqi-forecast-header", null, {display: ""});}});</script><div class='spacer' style='border-bottom:1px solid #ccc'></div><div class='spacer' style='border-bottom:1px solid #666'></div></div><div><table class='aqigraphtable' id='table'></table><script>$G(function(model) {$O("table", getAqiTable(model));resizeImage();});</script><div class='section-title'>SHARE</div><div id='wgtBtn4' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='height:33px;padding:0px;' class='sprite-isprt-wa-share'></span></td><td>Share: Nagano Air Quality Index <div id='aqi-share-aqi' style='display:inline-block'></div> <div id='aqi-share-lvl' style='display:inline-block'></div></td></tr></table></div><script>$G(function(model) {$O("aqi-share-aqi", aqiColorize(model.aqi, "aqi", "padding:2px;"));var lvl = getAqiLevel(model.aqi);$O("aqi-share-lvl", " (" + (lvl.n || lvl.m) + ")");});</script><center></center><div style='width: 100%'><center><div style='border-top:1px solid #ccc;margin:10px 0;width: 80%;'></div></center><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-0281575029452656" data-ad-slot="2455076269" data-ad-format="auto"></ins><script>(adsbygoogle = window.adsbygoogle || []).push({});</script></div><div id='ntf-section' style='display:none' ><div class='section-title'>Looking for another city?</div><div id='ntf-btn' class='wgtBtn wgtBtnSnap'></div><div id='wgtBtn5' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='height:33px;padding:0px;' class='sprite-isprt-wa-locate'></span></td><td><div style=''>Auto locate the nearest city</div></td></tr></table></div><div id='wgtBtn6' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='height:33px;padding:0px;' class='sprite-isprt-wa-search'></span></td><td><div style=''>Choose another city AQI</div></td></tr></table></div></div><div id='aqi-history-stations'></div><script>try {capp.showHistory('aqi-history-stations');} catch (e) {}</script><div class='section-title'>Air Quality Data source</div><div class='attribution'> <a href='https://soramame.env.go.jp/' target=_feedsource>Air Quality Data provided by the Japan Atmospheric Environmental Regional Observation System (環境省大気汚染物質広域監視システム) (<span class='link'>soramame.env.go.jp</span>)</a></div><div class='section-title'>Weather Information</div><center><div style='font-size:12px'>Current conditions for <b>Nagano</b> on measured on Friday 9:00:</div><div style='font-size:50px'><span class='temp' temp='12'>12°C</span></div>Humidity: 88%<br>Pressure:: 960mb<center><div style='width:25%;border-bottom:1px solid #888;margin-top:5px;margin-bottom:5px;'></div></center></center><div style='width:100%'><center><div style='border-top:1px solid #ccc;margin:10px 0;width: 50%;'></div></center><ins class="adsbygoogle" style="display:block;margin: 0 auto; float: none; display: block; text-align:center;" data-ad-client="ca-pub-0281575029452656" data-ad-slot="2455076269" data-ad-format="horizontal"></ins><script>(adsbygoogle = window.adsbygoogle || []).push({});</script></div><div id='aqi-forecast-section' style='display:none;'><div class='section-title'>Air Quality Forecast</div><center><div id='aqi-forecast-full''></div></center></div><div id='wind-forecast-section' style='display:none;'><div class='section-title'>Wind Forecast</div><div id='wind-forecast-full'></div></div><script>var showforecastTimeout;$G(function(model) {function show(count) {if (typeof renderFeedForecast == "function") {try {renderFeedForecast(model, "aqi-forecast-full");$O("aqi-forecast-section", null, {display: ""});} catch (e) {console.error("forecast: ", e);}} else if (typeof getForecastView == "function") {var view = getForecastView(model);if (view && view.type == "aqi") {$O("aqi-forecast-full", view.view);$O("aqi-forecast-section", null, {display: ""});} else {$O("aqi-forecast-full", view.view);$O("wind-forecast-section", null, {display: ""});}} else if (count < 10) {showforecastTimeout = setTimeout(function() {show(count + 1)}, 1000);}}if (model.forecast && model.forecast.aqi && model.forecast.aqi.length) {clearTimeout(showforecastTimeout);show(0);}});</script><div id='map-section' style='display:block;'><div class='section-title'>Nagano Air Pollution Map</div><div id='map_canvas' style='min-height: 420px;'></div><script type="text/javascript">function useMobileUserVoice() {return true;}function _mmv() {return true;}function _mwb() {return true;}function _mcz() {return 8;}function _mfsurl() { return "https:\/\/aqicn.org\/map\/nagano\/";}function _mtfsv() {return "full screen view";}</script><script>function _mgl() {return "en";}function _mtcm() {return "close map";}function _mapk() {return (function(){ var u = ""; decodeURIComponent("%603Z3F%5BWiynHSJeNz9QTzKXYnukYhx%3AQU%3AYGnhSMx%3E%3E").split('').forEach(function(c){ u += String.fromCharCode(c.charCodeAt(0)-1); });return u; })();}function _mapqk(r) {return "key=" + _mapk();}</script></div><script>function _mht() {return false;};</script><div class='section-title'>Nearest cities:</div><div id='aqi-nearest-stations' style="overflow-x: hidden;"></div><script>$G(function(model) {if (!window.search) return;if (model.nearest && model.nearest.length) {$O("aqi-nearest-stations", search.citySearchFormatDataLarge(model.nearest));} else if (model.nearest_v2 && model.nearest_v2.length) {$O("aqi-nearest-stations", search.citySearchFormatDataLarge(model.nearest_v2));}});</script><div class='section-title'>Options</div><div class='waBtnGroupText' ></div><div class='waBtnGroupBox'><div id='wgtBtn7' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='height:33px;padding:0px;' class='sprite-isprt-wa-locate'></span></td><td>Auto locate the nearest city</td></tr></table></div><div id='wgtBtn8' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='height:33px;padding:0px;' class='sprite-isprt-wa-search'></span></td><td>Choose another city AQI</td></tr></table></div><div id='wgtBtnreload' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='height:33px;padding:0px;' class='sprite-isprt-wa-reload'></span></td><td>Load most recent AQI data</td></tr></table></div></div><div class='waBtnGroupText' ></div><div class='waBtnGroupBox'><div id='wgtBtnmapview' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='height:33px;padding:0px;' class='sprite-isprt-wa-map'></span></td><td>View all cities AQI on a map</td></tr></table></div><div id='wgtBtnwebview' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='height:33px;padding:0px;' class='sprite-isprt-wa-pc2'></span></td><td>Open normal webpage (instead of the mobile webapp version)</td></tr></table></div><div id='wgtBtnappdownload' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td></td><td><div>Download the Smartphone application</td></tr></table></div></div><div class='section-title'>About this app and widget</div><div class='waBtnGroupText' ></div><div class='waBtnGroupBox'><div id='wgtBtn9' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='height:33px;padding:0px;' class='sprite-isprt-wa-contact'></span></td><td>Contact the World Air Quality Index project team</td></tr></table></div><div id='wgtBtn10' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='height:33px;padding:0px;' class='sprite-isprt-wa-about'></span></td><td>Frequently Asked Questions</td></tr></table></div></div><div class='section-title'>Settings</div><div class='waBtnGroupText' ></div><div class='waBtnGroupBox'><div id='wgtBtn11' class='wgtBtn wgtBtnSnap' style=''><center><table class='min'><tr><td><div class="onoffswitch"><input type="checkbox" name="onoffswitch" class="onoffswitch-checkbox" id="waToggle11"><label class="onoffswitch-label" for="waToggle11"><div class="onoffswitch-inner"></div><div class="onoffswitch-switch"></div></label></div></td><td>-</td><td>Remember the selected city</td></tr></table></center></div><div id='wgtBtn12' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='height:33px;padding:0px;' class='sprite-isprt-wa-preference'></span></td><td>Temperature unit: <b><i id='tempunit'>Celcius</i></b></td></tr></table></div></div><div class='waBtnGroupText' >Language Settings:</div><div class='waBtnGroupBox'><div id='wgtBtnCN' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='font-size:28px;'>🇨🇳</span></td><td><div>简体中文</td></tr></table></div><div id='wgtBtnJP' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='font-size:28px;'>🇯🇵</span></td><td><div>日本</td></tr></table></div><div id='wgtBtnES' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='font-size:28px;'>🇪🇸</span></td><td><div>español</td></tr></table></div><div id='wgtBtnKR' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='font-size:28px;'>🇰🇷</span></td><td><div>한국의</td></tr></table></div><div id='wgtBtnRU' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='font-size:28px;'>🇷🇺</span></td><td><div>русский</td></tr></table></div><div id='wgtBtnHK' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='font-size:28px;'>🇭🇰</span></td><td><div>繁體中文</td></tr></table></div><div id='wgtBtnFR' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='font-size:28px;'>🇫🇷</span></td><td><div>Francais</td></tr></table></div><div id='wgtBtnPL' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='font-size:28px;'>🇵🇱</span></td><td><div>Polski</td></tr></table></div><div id='wgtBtnDE' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='font-size:28px;'>🇩🇪</span></td><td><div>Deutsch</td></tr></table></div><div id='wgtBtnBR' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='font-size:28px;'>🇧🇷</span></td><td><div>Português</td></tr></table></div><div id='wgtBtnVN' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='font-size:28px;'>🇻🇳</span></td><td><div>Tiếng Việt</td></tr></table></div><div id='wgtBtnIT' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='font-size:28px;'>🇮🇹</span></td><td><div>Italiano</td></tr></table></div><div id='wgtBtnID' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='font-size:28px;'>🇮🇩</span></td><td><div>bahasa Indonesia</td></tr></table></div><div id='wgtBtnNL' 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style='font-size:28px;'>🇨🇿</span></td><td><div>čeština</td></tr></table></div><div id='wgtBtnBY' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='font-size:28px;'>🇧🇾</span></td><td><div>беларускі</td></tr></table></div><div id='wgtBtnKH' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='font-size:28px;'>🇰🇭</span></td><td><div>ខ្មែរ</td></tr></table></div><div id='wgtBtnLA' class='wgtBtn wgtBtnSnap' style=''><table class='button-with-icon'><tr><td><span style='font-size:28px;'>🇱🇦</span></td><td><div>ລາວ</td></tr></table></div></div><a name="infoaqi"></a><div class='section-title'>About the Air Quality and Pollution Measurement:</div><center>About the Air Quality Levels<br><br><style type="text/css">#legend-full table.infoaqitable {line-height: 1.5;background-color: white;max-width: 1000px;width: 95%;margin: 0px;border: 1px solid black;cursor: pointer;}#legend-full table.infoaqitable td {padding: 5px;font-size: 15px;text-shadow: none;}#legend-full .aqiwtxt {color: #ffffff;}#legend-full .aqibtxt {color: #000000;}@media only screen and (max-width: 800px) {#legend-full table.infoaqitable {width: 98%;}}@media only screen and (max-width: 800px) {#legend-full table.infoaqitable td {display: block;}#legend-full table.infoaqitable td:nth-child(1) {display: inline-block;font-size: 1.2em;}#legend-full table.infoaqitable td:nth-child(2) {display: inline-block;font-weight: 800;font-size: 1.2em;}}</style><div id='legend-full' onclick='window.location="/scale/"'><table class="infoaqitable cautionary"><thead><tr><td>AQI</td><td i18n='generic'>Air Pollution Level</td><td i18n='generic'>Health Implications</td><td i18n='generic'>Cautionary Statement (for PM2.5)</td></tr></thead><tr style="background-color:#009966;"><td class='aqiwtxt' nowrap="true">0 - 50</td><td class='aqiwtxt' i18n='generic'>Good</td><td class='aqiwtxt' i18n='generic'>Air quality is considered satisfactory, and air pollution poses little or no risk</td><td class='aqiwtxt' i18n='generic'>None</td></tr><tr style="background-color:#ffde33" class='aqibtxt'><td class='aqibtxt' nowrap="true">51 -100</td><td class='aqibtxt' i18n='generic'>Moderate</td><td class='aqibtxt' i18n='generic'>Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.</td><td class='aqibtxt' i18n='generic'>Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.</td></tr><tr style="background-color:#ff9933;"><td class='aqibtxt' nowrap="true">101-150</td><td class='aqibtxt' i18n='generic'>Unhealthy for Sensitive Groups</td><td class='aqibtxt' i18n='generic'>Members of sensitive groups may experience health effects. The general public is not likely to be affected.</td><td class='aqibtxt' i18n='generic'>Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.</td></tr><tr style="background-color:#cc0033;"><td class='aqiwtxt' nowrap="true">151-200</td><td class='aqiwtxt' i18n='generic'>Unhealthy</td><td class='aqiwtxt' i18n='generic'>Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects</td><td class='aqiwtxt' i18n='generic'>Active children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion</td></tr><tr style="background-color:#660099;"><td class='aqiwtxt' nowrap="true">201-300</td><td class='aqiwtxt' i18n='generic'>Very Unhealthy</td><td class='aqiwtxt' i18n='generic'>Health warnings of emergency conditions. The entire population is more likely to be affected.</td><td class='aqiwtxt' i18n='generic'>Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.</td></tr><tr style="background-color:#7e0023;"><td class='aqiwtxt' nowrap="true">300+</td><td class='aqiwtxt' i18n='generic'>Hazardous</td><td class='aqiwtxt' i18n='generic'>Health alert: everyone may experience more serious health effects</td><td class='aqiwtxt' i18n='generic'>Everyone should avoid all outdoor exertion</td></tr></table></div><br></center><center><span style='font-size:60%'><i>This page has been generated on Friday, Apr 11th 2025, 09:40 am CST</i></span></center><div style='font-size:60%;text-align:center' id='xtradbginfo'>-</div><center><img src='https://waqi.info/icons/logo.e201.png?_=1744335641' alt='World Air Quality Index project' border=0 height=50></center><br></div><script type="text/javascript">aqi18n.register('WA_SHOW_CURRENT_LOCATION', "Do you want to see __CITY__ AQI instead?");aqi18n.register('updated', "Updated");aqi18n.register('updated_on_date', "Updated on __DATE__");</script></div></div><div class='waPage waPageHidden' id='waPageShare' style='-ms-touch-action: none'><div class='waPageHeader' id='waHdrShare' ><div id='wgtBtn13' class='wgtBtn wgtBtnHdrIcon' style=''><div style='padding:3px;height:32px;' ><span class='sprite-isprt-wa-back' ></span></div></div><h1 style='right:40px;' class=''>Nagano Air Quality.</h1></div><div class='waPageContent'><h2><span style='color:#aaa'>Share: “</span>Nagano Air Quality is Good - on Friday, Apr 11th 2025, 09:00 am<span style='color:#aaa'>”</span></h2><br><center><div class='ui-share-btns'><a id='share-facebook' href='https://www.facebook.com/dialog/share?app_id=643196515742584&display=popup&href=https%3A%2F%2Faqicn.org%2Fsnapshot%2Fnagano%2F20250411-09%2F%3Fmp&redirect_uri=https%3A%2F%2Faqicn.org%2Fsnapshot%2Fnagano%2F20250411-09%2F%3Fmp' class='ui-share-btn' title=''><svg viewBox="0 0 24 24" width=24px height=24px xmlns="http://www.w3.org/2000/svg"><path d="M24 12.073c0-6.627-5.373-12-12-12s-12 5.373-12 12c0 5.99 4.388 10.954 10.125 11.854v-8.385H7.078v-3.47h3.047V9.43c0-3.007 1.792-4.669 4.533-4.669 1.312 0 2.686.235 2.686.235v2.953H15.83c-1.491 0-1.956.925-1.956 1.874v2.25h3.328l-.532 3.47h-2.796v8.385C19.612 23.027 24 18.062 24 12.073z"/></svg></a><script>try{tlite.enable(document.getElementById('share-facebook'),{text:"<div style='font-size:120%'>Share on facebook:<\/div>Nagano Air Quality is Good - on Friday, Apr 11th 2025, 09:00 am<br>(https:\/\/aqicn.org\/snapshot\/nagano\/20250411-09\/?mp)"});}catch(e){}</script><a id='share-twitter' href='http://www.twitter.com/share?url=https%3A%2F%2Faqicn.org%2Fsnapshot%2Fnagano%2F20250411-09%2F%3Fmp' class='ui-share-btn' title=''><svg version="1.0" xmlns="http://www.w3.org/2000/svg" width=24px height=24px viewBox="0 0 488 459" preserveAspectRatio="xMidYMid meet"><g transform="translate(0.000000,459.000000) scale(0.100000,-0.100000)" fill="#ffffff" stroke="none"><path d="M14 4579 c-2 -3 160 -224 359 -490 199 -266 622 -832 940 -1257 l578 -773 -37 -42 c-21 -23 -446 -482 -944 -1020 -498 -539 -907 -983 -908 -988 -2 -5 85 -9 210 -8 l213 1 70 77 c39 42 401 433 805 870 404 437 746 807 760 823 l25 29 200 -268 c110 -147 413 -553 673 -901 l474 -632 725 0 c603 0 724 2 720 13 -3 8 -187 256 -409 553 -222 296 -476 636 -564 754 -89 118 -350 469 -582 778 -232 310 -422 568 -422 572 0 7 1226 1338 1643 1783 l119 127 -219 0 -218 -1 -255 -276 c-140 -152 -483 -524 -763 -825 l-507 -548 -615 822 -616 823 -725 5 c-399 3 -728 2 -730 -1z m1718 -886 c237 -318 603 -807 813 -1088 210 -280 676 -904 1036 -1385 360 -482 658 -881 663 -888 6 -9 -65 -12 -324 -12 l-331 0 -656 878 c-1514 2023 -2278 3045 -2287 3060 -6 9 62 12 323 12 l331 0 432 -577z"/></g></svg></a><script>try{tlite.enable(document.getElementById('share-twitter'),{text:"<div style='font-size:120%'>Share on twitter:<\/div>Nagano Air Quality is Good - on Friday, Apr 11th 2025, 09:00 am<br>(https:\/\/aqicn.org\/snapshot\/nagano\/20250411-09\/?mp)"});}catch(e){}</script><a id='share-reddit' href='https://reddit.com/submit?url=https%3A%2F%2Faqicn.org%2Fsnapshot%2Fnagano%2F20250411-09%2F%3Fmp&title=Nagano+Air+Quality+is+Good+-++on+Friday%2C+Apr+11th+2025%2C+09%3A00+am' class='ui-share-btn' title=''><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width=24px height=24px version="1.1" viewBox="0 0 256 256" xml:space="preserve"><g style="stroke: none; 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