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href="https://fr.wikipedia.org/wiki/Arie_Jan_Haagen-Smit" title="Arie Jan Haagen-Smit – French" lang="fr" hreflang="fr" data-title="Arie Jan Haagen-Smit" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/%D8%A2%D8%B1%D9%89_%D8%AC%D8%A7%D9%86_%D9%87%D8%A7%D8%AC%D9%86_%D8%B3%D9%85%D9%8A%D8%AA" title="آرى جان هاجن سميت – Egyptian Arabic" lang="arz" hreflang="arz" data-title="آرى جان هاجن سميت" data-language-autonym="مصرى" data-language-local-name="Egyptian Arabic" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Arie_Jan_Haagen-Smit" title="Arie Jan Haagen-Smit – Dutch" lang="nl" hreflang="nl" data-title="Arie Jan Haagen-Smit" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Arie_Jan_Haagen-Smit" title="Arie Jan Haagen-Smit – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Arie Jan Haagen-Smit" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Arie_Jan_Haagen-Smit" title="Arie Jan Haagen-Smit – Portuguese" lang="pt" hreflang="pt" data-title="Arie Jan Haagen-Smit" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A5%D0%B0%D0%B3%D0%B5%D0%BD-%D0%A1%D0%BC%D0%B8%D1%82,_%D0%90%D1%80%D1%8C%D0%B5_%D0%96%D0%B0%D0%BD" 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<div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Dutch chemist</div> <p><b>Arie Jan Haagen-Smit</b> (December 22, 1900 – March 17, 1977) was a Dutch <a href="/wiki/Chemist" title="Chemist">chemist</a>. He is best known for linking the <a href="/wiki/Smog" title="Smog">smog</a> in <a href="/wiki/Southern_California" title="Southern California">Southern California</a> to automobiles and is therefore known by many as the "father" of <a href="/wiki/Air_pollution" title="Air pollution">air pollution</a> control. After serving as an original board member of the Motor Vehicle Pollution Control Board, formed in 1960 to combat the smog, Dr. Haagen-Smit became the <a href="/wiki/California_Air_Resources_Board" title="California Air Resources Board">California Air Resources Board</a>'s first chairman in 1968. Shortly before his death in <a href="/wiki/Pasadena,_California" title="Pasadena, California">Pasadena, California</a>, of <a href="/wiki/Lung_cancer" title="Lung cancer">lung cancer</a>, the Air Resources Board's El Monte Laboratory was named after him. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Education">Education</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Arie_Jan_Haagen-Smit&action=edit&section=1" title="Edit section: Education"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Haagen-Smit was born December 22, 1900, in the <a href="/wiki/Netherlands" title="Netherlands">Dutch</a> city of <a href="/wiki/Utrecht_(city)" class="mw-redirect" title="Utrecht (city)">Utrecht</a>. His father worked as a chemist at the Dutch mint.<sup id="cite_ref-Bonner_1-0" class="reference"><a href="#cite_note-Bonner-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Haagen-Smit attended the <i>Rijks <a href="/wiki/Hogere_Burgerschool" title="Hogere Burgerschool">Hogere Burgerschool</a></i> in Utrecht. He graduated from the <a href="/wiki/University_of_Utrecht" class="mw-redirect" title="University of Utrecht">University of Utrecht</a> in 1922 with a major in <a href="/wiki/Organic_chemistry" title="Organic chemistry">organic chemistry</a> and a minor in mathematics. He earned his M.A. degree in 1926 and Ph.D. in 1929. His work was on <a href="/wiki/Terpenes" class="mw-redirect" title="Terpenes">terpenes</a>, a <a href="/wiki/Hydrocarbon" title="Hydrocarbon">hydrocarbon</a> found in plants. His dissertation is titled "Investigations in the Field of Sesquiterpenes". </p> <div class="mw-heading mw-heading2"><h2 id="Academic_career">Academic career</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Arie_Jan_Haagen-Smit&action=edit&section=2" title="Edit section: Academic career"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>He stayed at the University of Utrecht from 1929 to 1935 as chief assistant. He became an expert in plant derived chemicals, particularly <a href="/wiki/Auxins" class="mw-redirect" title="Auxins">Auxins</a>, a <a href="/wiki/Hormone" title="Hormone">hormone</a>. He was invited to lecture at <a href="/wiki/Harvard_University" title="Harvard University">Harvard University</a> in 1936 by <a href="/wiki/Kenneth_Thimann" class="mw-redirect" title="Kenneth Thimann">Kenneth Thimann</a>. He was appointed as associate professor by <a href="/wiki/California_Institute_of_Technology" title="California Institute of Technology">California Institute of Technology</a> in 1937 by <a href="/wiki/Thomas_Hunt_Morgan" title="Thomas Hunt Morgan">Thomas Hunt Morgan</a>, and <a href="/wiki/Professor" title="Professor">professor</a> in 1940, becoming one of the "Dutch Mafia" at Caltech. (Another member of the "mafia" was <a href="/wiki/Frits_Warmolt_Went" title="Frits Warmolt Went">Frits Warmolt Went</a>.) Haagen-Smit studied the flavor of <a href="/wiki/Pineapple" title="Pineapple">pineapples</a>.<sup id="cite_ref-gardner2014_2-0" class="reference"><a href="#cite_note-gardner2014-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> He published a paper jointly with two other scientists on <a href="/wiki/Traumatic_acid" title="Traumatic acid">traumatic acid</a>, a wound healing hormone, in <i><a href="/wiki/Science_(journal)" title="Science (journal)">Science</a></i> in 1939. He was the director of the Plant Environmental Laboratory at the California Institute of Technology from 1965 to 1971. </p> <div class="mw-heading mw-heading2"><h2 id="Air_pollution_fighter">Air pollution fighter</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Arie_Jan_Haagen-Smit&action=edit&section=3" title="Edit section: Air pollution fighter"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>He started his air pollution research in 1948, when Southern California residents suffered stinging eyes and respiratory irritation from <a href="/wiki/Smog" title="Smog">smog</a>.<sup id="cite_ref-JAPCA_3-0" class="reference"><a href="#cite_note-JAPCA-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> His original interest stemmed from damage to crop plants smog was causing in the Los Angeles Basin, and he had received many requests from government agencies to investigate air pollution.<sup id="cite_ref-JAPCA_3-1" class="reference"><a href="#cite_note-JAPCA-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Using techniques originally developed in his work on the biosynthesis of essential oils, Haagen-Smit showed that smog primarily resulted from a photochemical reaction of the <a href="/wiki/Unburned_hydrocarbon" title="Unburned hydrocarbon">unburned hydrocarbons</a>, <a href="/wiki/Ozone" title="Ozone">ozone</a>, and <a href="/wiki/NOx" title="NOx">nitrogen oxides</a> from automobile exhaust and industrial fuel combustion.<sup id="cite_ref-Gale_5-0" class="reference"><a href="#cite_note-Gale-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> After a representative of the <a href="/wiki/SRI_International" title="SRI International">Stanford Research Institute</a> (which was funded by the oil industry) went to Caltech and attempted to discredit Haagen-Smit's findings, Haagen-Smit increased his research efforts.<sup id="cite_ref-hundred_7-0" class="reference"><a href="#cite_note-hundred-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: 219–224">: 219–224 </span></sup><sup id="cite_ref-gardner2014_2-1" class="reference"><a href="#cite_note-gardner2014-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Kean_8-0" class="reference"><a href="#cite_note-Kean-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> By the mid 1950s, the connection between automobiles and smog in <a href="/wiki/Los_Angeles" title="Los Angeles">Los Angeles</a> became widely accepted in scientific circles.<sup id="cite_ref-gardner2014_2-2" class="reference"><a href="#cite_note-gardner2014-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Haagen-Smit worked with <a href="/wiki/Arnold_Beckman" title="Arnold Beckman">Arnold Beckman</a>, who developed various equipment for monitoring smog.<sup id="cite_ref-hundred_7-1" class="reference"><a href="#cite_note-hundred-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: 224–226">: 224–226 </span></sup> </p><p>Haagen-Smit's research led the automobile industry to install <a href="/wiki/Crankcase_ventilation_system" title="Crankcase ventilation system">positive crankcase ventilation</a>, the first <a href="/wiki/Vehicle_emissions_control" title="Vehicle emissions control">vehicle emissions control</a> system, in 1961. In 1968 Haagen-Smit was appointed the first Chairman of the <a href="/wiki/California_Air_Resources_Board" title="California Air Resources Board">California Air Resources Board</a> by <a href="/wiki/Ronald_Reagan" title="Ronald Reagan">Ronald Reagan</a>, California's Governor at the time.<sup id="cite_ref-JAPCA_3-2" class="reference"><a href="#cite_note-JAPCA-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Gale_5-1" class="reference"><a href="#cite_note-Gale-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Honors">Honors</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Arie_Jan_Haagen-Smit&action=edit&section=4" title="Edit section: Honors"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><b>1947</b> – <a href="/wiki/Knight_Order_of_Orange-Nassau" class="mw-redirect" title="Knight Order of Orange-Nassau">Knight Order of Orange-Nassau</a> of the <a href="/wiki/Netherlands" title="Netherlands">Netherlands</a></li> <li><b>1950</b> – <a href="/w/index.php?title=Fritizche_award&action=edit&redlink=1" class="new" title="Fritizche award (page does not exist)">Fritizche Award</a> of <a href="/wiki/American_Chemical_Society" title="American Chemical Society">American Chemical Society</a></li> <li><b>1964</b> – <a href="/wiki/Tolman_Award" title="Tolman Award">Tolman Award</a> of American Chemical Society –</li> <li><b>1969</b> - <a href="/wiki/Hodgkins_Medal" title="Hodgkins Medal">Hodgkins Medal</a> of the <a href="/wiki/Smithsonian_Institution" title="Smithsonian Institution">Smithsonian Institution</a></li> <li><b>1973</b> – <a href="/wiki/List_of_National_Medal_of_Science_recipients" class="mw-redirect" title="List of National Medal of Science recipients">National Medal of Science</a> Physical Sciences of the <a href="/wiki/United_States" title="United States">United States of America</a></li> <li><b>1974</b> – <a href="/wiki/Tyler_Prize_for_Environmental_Achievement" title="Tyler Prize for Environmental Achievement">Tyler Prize for Environmental Achievement</a></li> <li><b>1974</b> – <a href="/wiki/Elliott_Cresson_Medal" title="Elliott Cresson Medal">Elliott Cresson Medal</a></li> <li>He was also the recipient of the <a href="/w/index.php?title=Rhineland_Award&action=edit&redlink=1" class="new" title="Rhineland Award (page does not exist)">Rhineland Award</a>.</li> <li>He was a Fellow of the <a href="/wiki/New_York_Academy_of_Sciences" title="New York Academy of Sciences">New York Academy of Sciences</a> and the <a href="/w/index.php?title=Royal_Academy_of_Sciences_of_the_Netherlands&action=edit&redlink=1" class="new" title="Royal Academy of Sciences of the Netherlands (page does not exist)">Royal Academy of Sciences of the Netherlands</a>.</li> <li>Trustee of the American Chemical Society.</li> <li><b>1977</b> – On January 7 the existing California Air Resources Board Laboratory in <a href="/wiki/El_Monte,_California" title="El Monte, California">El Monte, California</a>, was dedicated to Dr. Haagen-Smit. It is called the "Haagen-Smit Laboratory."</li></ul> <div class="mw-heading mw-heading2"><h2 id="Family">Family</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Arie_Jan_Haagen-Smit&action=edit&section=5" title="Edit section: Family"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In 1930, he married Petronella Francina Pennings. They had a son, Jan Willem Adrianus, who was born only three months before Petronella died in 1933. On June 10, 1935, he married Maria "Zus" Wilhelmina Bloemers, a graduate student of <a href="/wiki/Botany" title="Botany">botany</a> in the University of Utrecht. They had three daughters: Maria van Pelt, Maria Daniel, and Joanne Demers.<sup id="cite_ref-Cohen_9-0" class="reference"><a href="#cite_note-Cohen-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Arie_Jan_Haagen-Smit&action=edit&section=6" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-Bonner-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-Bonner_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFBonner1989" class="citation book cs1">Bonner, James (1989). <a rel="nofollow" class="external text" href="http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/haagen-smit-arie.pdf"><i>Arie Jan Haagen-Smit 1900-1977 A Biographical Memoir</i></a> <span class="cs1-format">(PDF)</span>. National Academy of Sciences<span class="reference-accessdate">. Retrieved <span class="nowrap">10 March</span> 2017</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Arie+Jan+Haagen-Smit+1900-1977+A+Biographical+Memoir&rft.pub=National+Academy+of+Sciences&rft.date=1989&rft.aulast=Bonner&rft.aufirst=James&rft_id=http%3A%2F%2Fwww.nasonline.org%2Fpublications%2Fbiographical-memoirs%2Fmemoir-pdfs%2Fhaagen-smit-arie.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AArie+Jan+Haagen-Smit" class="Z3988"></span></span> </li> <li id="cite_note-gardner2014-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-gardner2014_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-gardner2014_2-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-gardner2014_2-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFGardner2014" class="citation web cs1">Gardner, Sarah (2014-07-14). <a rel="nofollow" class="external text" href="https://www.marketplace.org/2014/07/14/la-smog-battle-against-air-pollution">"LA Smog: the battle against air pollution"</a>. <i>Marketplace.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2021-02-24</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Marketplace.org&rft.atitle=LA+Smog%3A+the+battle+against+air+pollution&rft.date=2014-07-14&rft.aulast=Gardner&rft.aufirst=Sarah&rft_id=https%3A%2F%2Fwww.marketplace.org%2F2014%2F07%2F14%2Fla-smog-battle-against-air-pollution&rfr_id=info%3Asid%2Fen.wikipedia.org%3AArie+Jan+Haagen-Smit" class="Z3988"></span></span> </li> <li id="cite_note-JAPCA-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-JAPCA_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-JAPCA_3-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-JAPCA_3-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text">Pitts NJ Jr., Stephens ER. <a rel="nofollow" class="external text" href="https://www.arb.ca.gov/research/hsawards/japcaarticle1978.pdf">"Arie Jan Haagen-Smit, 1900-1977"</a> J Air Poll Control Assn 1978: 516-517.</span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text">Haagen-Smit, A. J., Rept. to the Los Angeles County Air Pollution Control District, "The Analysis of Air Contaminants," 1949.</span> </li> <li id="cite_note-Gale-5"><span class="mw-cite-backlink">^ <a href="#cite_ref-Gale_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Gale_5-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://link.galegroup.com/apps/doc/K2432100168/BIC1?u=fairfax_main&xid=47422911"><i>A. J. Haagen-Smit</i>.</a> World of Chemistry, Gale, 2006. Biography in Context. Accessed 7 Mar. 2017.</span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text">Haagen-Smit, A.J. 1952. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20170308044020/https://pdfs.semanticscholar.org/1f18/64424a52955b607781d45f007ed8fd1b8002.pdf">Chemistry and physiology of Los Angeles smog</a>. Industrial and Engineering Chemistry Research 44:1342-1346.</span> </li> <li id="cite_note-hundred-7"><span class="mw-cite-backlink">^ <a href="#cite_ref-hundred_7-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-hundred_7-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFThackrayMyers,_Jr.2000" class="citation book cs1">Thackray, Arnold & Myers, Jr., Minor (2000). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=edtL_hIi8M0C&pg=PA219"><i>Arnold O. Beckman : one hundred years of excellence</i></a>. Philadelphia, Pa.: Chemical Heritage Foundation. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-941901-23-9" title="Special:BookSources/978-0-941901-23-9"><bdi>978-0-941901-23-9</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Arnold+O.+Beckman+%3A+one+hundred+years+of+excellence&rft.place=Philadelphia%2C+Pa.&rft.pub=Chemical+Heritage+Foundation&rft.date=2000&rft.isbn=978-0-941901-23-9&rft.aulast=Thackray&rft.aufirst=Arnold&rft.au=Myers%2C+Jr.%2C+Minor&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DedtL_hIi8M0C%26pg%3DPA219&rfr_id=info%3Asid%2Fen.wikipedia.org%3AArie+Jan+Haagen-Smit" class="Z3988"></span></span> </li> <li id="cite_note-Kean-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-Kean_8-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFKean2015" class="citation journal cs1">Kean, Sam (2015). <a rel="nofollow" class="external text" href="https://www.sciencehistory.org/distillations/magazine/the-flavor-of-smog">"The Flavor of Smog"</a>. <i>Distillations</i>. <b>2</b> (3): 5<span class="reference-accessdate">. Retrieved <span class="nowrap">22 March</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Distillations&rft.atitle=The+Flavor+of+Smog&rft.volume=2&rft.issue=3&rft.pages=5&rft.date=2015&rft.aulast=Kean&rft.aufirst=Sam&rft_id=https%3A%2F%2Fwww.sciencehistory.org%2Fdistillations%2Fmagazine%2Fthe-flavor-of-smog&rfr_id=info%3Asid%2Fen.wikipedia.org%3AArie+Jan+Haagen-Smit" class="Z3988"></span></span> </li> <li id="cite_note-Cohen-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-Cohen_9-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFHaagen-SmitCohen2000" class="citation book cs1">Haagen-Smit, Zus (Maria); Cohen, Shirley K. (March 2000). <a rel="nofollow" class="external text" href="http://oralhistories.library.caltech.edu/42/01/OH_Haagen-Smit_Z.pdf"><i>Zus (Maria) Haagen-Smit (1910–2006 ) Interviewed by Shirley K. Cohen</i></a> <span class="cs1-format">(PDF)</span>. Pasadena, California: Oral History Project, California Institute of Technology Archives<span class="reference-accessdate">. Retrieved <span class="nowrap">10 March</span> 2017</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Zus+%28Maria%29+Haagen-Smit+%281910%E2%80%932006+%29+Interviewed+by+Shirley+K.+Cohen&rft.place=Pasadena%2C+California&rft.pub=Oral+History+Project%2C+California+Institute+of+Technology+Archives&rft.date=2000-03&rft.aulast=Haagen-Smit&rft.aufirst=Zus+%28Maria%29&rft.au=Cohen%2C+Shirley+K.&rft_id=http%3A%2F%2Foralhistories.library.caltech.edu%2F42%2F01%2FOH_Haagen-Smit_Z.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AArie+Jan+Haagen-Smit" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Arie_Jan_Haagen-Smit&action=edit&section=7" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFHaagen-SmitCohen2000" class="citation book cs1">Haagen-Smit, Zus (Maria); Cohen, Shirley K. (March 2000). <a rel="nofollow" class="external text" href="http://oralhistories.library.caltech.edu/42/01/OH_Haagen-Smit_Z.pdf"><i>Zus (Maria) Haagen-Smit (1910–2006 ) Interviewed by Shirley K. Cohen</i></a> <span class="cs1-format">(PDF)</span>. Pasadena, California: Oral History Project, California Institute of Technology Archives.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Zus+%28Maria%29+Haagen-Smit+%281910%E2%80%932006+%29+Interviewed+by+Shirley+K.+Cohen&rft.place=Pasadena%2C+California&rft.pub=Oral+History+Project%2C+California+Institute+of+Technology+Archives&rft.date=2000-03&rft.aulast=Haagen-Smit&rft.aufirst=Zus+%28Maria%29&rft.au=Cohen%2C+Shirley+K.&rft_id=http%3A%2F%2Foralhistories.library.caltech.edu%2F42%2F01%2FOH_Haagen-Smit_Z.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AArie+Jan+Haagen-Smit" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBonner1989" class="citation book cs1">Bonner, James (1989). <a rel="nofollow" class="external text" href="http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/haagen-smit-arie.pdf"><i>Arie Jan Haagen-Smit 1900-1977 A Biographical Memoir</i></a> <span class="cs1-format">(PDF)</span>. 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