var is_ie=navigator.appVersion.indexOf('MSIE')!=-1&&!window.opera,is_major=0;if(is_ie){var t=navigator.appVersion.split('MSIE');is_major=parseFloat(t[1])}function ieH(i){if(is_ie&&is_major<8)document.getElementById(i).style.display='inline'}function ieO(i){if(is_ie&&is_major<8)document.getElementById(i).style.display='none'}if(!strCareerFeed)var strCareerFeed='';if(!strCareerTitle)var strCareerTitle='';if(!strGoGreen)var strGoGreen='';if(!strBlog)var strBlog='';function mC(s,t){var d='',c='United States';if(s==1){c='Canada';d='ca/'}else if(s==2){c='United Kingdom';d='uk/'}else if(s==3){c='India';d='in/'}s=t.toLowerCase();s=s.replace('&','');s=s.replace('/','');s=s.replace(/ /g,'');t=t.replace('Professors','Professor');var l=t.toLowerCase();l=l.replace('english','English');l=l.replace('dot c','DOT c');l=l.replace('epa c','EPA c');l=l.replace('fda c','FDA c');l=l.replace('fmcsr','FMCSR');l=l.replace('osha','OSHA');l=l.replace('usda','USDA');return'<A HREF="http://EnvironmentalChemistry.com/careers/'+d+'type/'+s+'.html" title="Current listings for '+l+' careers in '+c+'." class="TML">'+t+'</a>';}function mP(d){var f='',n='com',p='the ',i='United States';if(d==1){p='';i='Canada';f=n='ca'}else if(d==2){i='United Kingdom';f='uk';n='co.uk'}else if(d==3){p='';i='India';f='in';n='co.in'}d='/JobSeeker/Resumes/PostResumeNew/PostYourResume.aspx?lr=';p='Help employers find you, post your resume/CV at CareerBuilder for jobs in '+p+i+'.';f=f==''?'CBENVCHEM':'int_'+f+'environmen&amp;siteID=int_'+f+'environment03';return'<A HREF="http://www.careerbuilder.'+n+d+f+'" title="'+p+'" class="TML">'+i+'</a>'}function mH(i,S,T,L,H){return'<div onmouseover="ieH(\'m'+String(i)+'s\');" onmouseout="ieO(\'m'+String(i)+'s\');" id="m'+String(i)+'" class="TMI'+S+'"><h3 class="TMH3">'+L+'" title="'+T+'">'+H+'</a></h3>'}function mU(L,i){return'<ul class="TMUL TML'+String(L)+'" id="m'+String(i)+'">'}function mJ(a,c){if(c===undefined)c='';return' onmouseover="ieH(\'m'+String(a)+'\');" onmouseout="ieO(\'m'+String(a)+'\');" class="TMLI TMA'+c+'">'}function mS(F,T,r,n){return'<A HREF="http://'+r+F+'" title="'+T+'your '+n+' account." class="TML">Add to '+n;}function TopMenu(){var EC='EnvironmentalChemistry.com';if(strCareers==' Selected'&&strCareerFeed!=''&&strCareerTitle!='')var V=strCareerFeed,W='Subscribe to the latest '+strCareerTitle+' via ';else if(strBlog==' Selected')var V='http://blog.'+EC+'/feeds/posts/default',W='Keep up with our Editors\' Blog via ';else{var V='http://'+EC+'/feed.xml',W='Keep up with '+EC+' via '}var AH='<A class="TML" HREF="http://',D=AH+EC,B=AH+'blog.'+EC+'/',O=D+'/yogi/chemistry/',N=D+'/yogi/environmental/',H=D+'/yogi/hazmat/',HP=H+'placards/',P=D+'/yogi/periodic/',G=D+'/gogreen/',G7=G+'ecorenovation/70shouse/',S=' class="TMLI"',X='<li'+S+'>',R='<li',Y='<li',L=Y+S+'>',Z='</ul>',T='.html" title="',TI='" title="',TS='<span title="',I='\');" class="TMA">',U='<ul class="TMUL TML',Sn='</span>',A='</A>',F=A+L,C=' Compliance',E='Environmental',Q=' Engineer',Sc='School',J=' Teachers',K=' Professors',AA='</div>',M1='<div class="TopMenu ScreenOnly">'+'<h2 id="TMH2">Site Menu</h2><p class="NoScreen"><a href="#Content">Skip menu and go to content</a></p>'+mH(10,strEnvironmental,'',N,'Environmental Issues')+mU(2,'10s')+R+mJ(10010)+'Consumer Health &amp; Food Safety Concerns'+mU(3,10010)+X+N+'200701fluorideininfantdiets'+T+'Based on American Dental Association recommendations, many infants and small children may be getting too much fluoride in their diets, which may po...">ADA Recommendation for Fluoride in Infant Diets'+A+Y+mJ(10010020)+TS+'A three part series on its history, chemical and physical properties, uses, health hazards and the legal implications of asbestosis &amp; mesotheli...">Asbestos'+Sn+mU(4,10010020)+X+N+'asbestoshistory2004'+T+'">Asbestos, a Brief History its Uses &amp; Health Risks'+F+N+'asbestosproperties2004'+T+'">Asbestos, its Chemical &amp; Physical Properties'+F+N+'asbestoshealthhazards2004'+T+'">Asbestos: A Manufacturing Health Hazard Dating to Prehistoric Times'+A+Z+Y+mJ(10010030)+'Dry-Cleaning Chemicals'+mU(4,10010030)+X+N+'200603percholorethylene'+T+'According to the EPA, we all may be exposed to perc because it is found in the air and drinking water nationwide.">Looking Good, Feeling Bad; or, What\'s the Problem with Perc?'+F+N+'200605drycleaning'+T+'The vast majority of America\'s dry cleaners use perc - are there viable alternatives? The three most prominent non-perc cleaning options are examin...">Are there Realistic Dry-Cleaning Alternatives to Perc?'+A+Z+L+N+'200603tefloncoverup'+T+'Court records and internal documents have shown that DuPont has been covering up the true dangers of Teflon for decades.">DuPont\'s Teflon Cover-up'+F+N+'200804childrenautismadhd'+T+'While the generally accepted causes of neurodevelopmental disorders like Autism and ADHD include genetic and environmental factors, a wide range of...">Neurodevelopmental Disorders in Children: Autism &amp; ADHD'+F+N+'200601pcbsinfood'+T+'PCBs a notoriously hazardous group of chemicals have infiltrated our food chain.">PCBs in the food you love'+A+Y+mJ(10010070)+'Seafood Safety'+mU(4,10010070)+X+N+'200511mercuryvsomega-3fattyacids'+T+'In spite of the health benefits provided by omega-3 fatty acids found in fish oils, people are decreasing fish in their diets due to high levels of...">Mercury in Fish vs. the Benefits of Fish Oils'+F+N+'200605norwegiansalmon'+T+'The quality and safety of Norwegian farmed salmon came into question with a Russian ban, illegal nitrate use and evidence of a Norwegian cover up.">Norwegian Farmed Salmon Raises Global Concern'+A+Z+L+H+'200606lawnchemicals'+T+'Each year consumers paint their lawns with various fertilizers, herbicides and pesticides.  These chemicals can be deadly if used incorrectly.">The Dangers of Lawn Chemicals at Home'+A+Z+Y+mJ(10020)+'Energy &amp; Sustainablity'+mU(3,10020)+X+N+'200802biofuels'+T+'Whatever their motivation - be it energy independence for the U.S. or an attempt at fighting climate change for Europe - world governments are now ...">Biofueling to the future'+F+N+'200611CO2globalwarming'+T+'Why is carbon dioxide considered pollution and how do scientists know that humans are responsible for climate change?">CO<sub>2</sub> Pollution and Global Warming'+F+N+'200704compactfluorescentlights'+T+'Do compact Fluorescent lights really save money, how well do they perform? See what we found out, then calculate your potential savings.">Compact Fluorescent Lights (CFLs): Are They Worth the Switch?'+F+N+'200706energyinnovation'+T+'In a mere 100 years we have depleted the equivalent of millions of years\' worth of solar energy captured by ancient organisms and locked up in oil,...">Global Trends in Energy Technology Innovation'+F+N+'200608hydrogenfuelcells'+T+'Energy sources of the future will have to be cleaner and more efficient than current sources - hydrogen fuel cells fulfill these requirements; howe...">Hydrogen Fuel Cells: Energy of the Future'+A+Z+Y+mJ(10030)+'Environmental Disasters'+mU(3,10030)+R+mJ(10030010)+'Chernobyl'+mU(4,10030010)+X+H+'articles/chernobyl1'+T+'In 1996 we revisited the Chernobyl disaster and looked at what the impacts were ten years on.">Chernobyl Revisited'+F+H+'articles/chernobyl2'+T+'Agricultural and Environmental Impact of the Chernobyl disaster">Agricultural and Environmental Impact'+F+H+'articles/chernobyl3'+T+'Chernobyl was a real turning point for nuclear energy.">A Turning Point'+A+Z+L+H+'articles/bhopal'+T+'Why would anyone choose to work in the hazardous waste industry?">From Bhopal to Hazardous Waste Compliance'+F+H+'articles/grownups'+T+'What was it like growing up in Love Canal NY, which became one of the Superfund Act\'s first Superfund hazardous waste site.">Love Canal NY: Grownups Don\'t Do Blue Goo'+F+N+'200606katrina'+T+'New Orleans communities were destroyed and lives uprooted as water came cascading onto the Bayou. 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So how can this be applied to p...">Can Prairie Dogs be Managed Utilizing Reconciliation Ecology?'+A+Z+L+N+'pseudoscience2004'+T+'Pseudoscience that threatens the integrity of science in America.">Pseudoscience: A Threat to Our Environment'+F+N+'200608junkscience'+T+'Do you know how to separate science from pseudoscience? 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Here are some things to do to make it safer.">Guide to Handling Household Chemicals'+F+H+'200606lawnchemicals'+T+'Each year consumers paint their lawns with various fertilizers, herbicides and pesticides.  These chemicals can be deadly if used incorrectly.">The Dangers of Lawn Chemicals at Home'+A+Z+Y+mJ(30020)+'Industry'+mU(3,30020)+R+mJ(30020010)+H+'erg/'+TI+'A6n online version of the USDOT ERG which is for first responders during the initial phase of a HazMat incident.">Emergency Response Guidebook (ERG)'+A+mU(4,30020010)+R+mJ(30020010010)+'List materials by'+mU(5,30020010010)+X+H+'erg/'+TI+'">UN Number'+F+H+'erg/ob/name'+T+'">Material Name'+A+Z+L+H+'erg/gn/list'+T+'">Guide Pages'+F+H+'erg/ii/1005-1082'+T+'">Table of Initial Isolation and Protective Action Distances'+F+H+'erg/wr/list'+T+'">Table of Water-Reactive Materials Which Produce Toxic Gases'+A+Y+mJ(30020010050)+'Notes'+mU(5,30020010050)+X+H+'erg/isointro'+T+'">Introduction to the Table of Initial Isolation and Protective Action Distances'+F+H+'erg/ProtectiveFactors'+T+'">Protective Action Decision Factors to Consider'+F+H+'erg/ProtectiveTableNotes'+T+'">How to use the table of initial isolation and protective action distances'+A+Z+Z+L+H+'table/'+TI+'USDOT hazardous materials table from 49CFR 172.101.">49CFR USDOT Hazardous Materials Table'+A+Y+mJ(30020030)+HP+TI+'Images and definitions of hazardous materials placards required by the USDOT when transporting dangerous goods.">USDOT HazMat Placards'+A+mU(4,30020030)+X+HP+'class1'+T+'Class 1 Explosives">1 Explosives'+F+HP+'class2'+T+'Class 2 Compressed Gasses">2 Compressed Gas'+F+HP+'class3'+T+'Class 3 Flammable Liquids">3 Flammable Liquid'+F+HP+'class4'+T+'Class 4 Flammable Solids">4 Flammable Solids'+F+HP+'class5'+T+'Class 5 Oxidizers">5 Oxidizers'+F+HP+'class6'+T+'Division 6.1 Poisons">6.1 Poisons'+F+HP+'class7'+T+'Class 7 Radioactive Materials">7 Radioactives'+F+HP+'class8'+T+'Class 8 Corrosive Liquids">8 Corrosives'+F+HP+'class9'+T+'Class 9 Miscellaneous">9 Miscellaneous'+F+HP+'etc'+T+'Related Markings">Related Markings'+F+H+'compliance/quiz'+T+'Test your knowledge of USDOT HazMat placarding regulations (49CFR).">Placarding Quiz'+A+Z+L+HP+'PlacardingCD'+T+'Contains clipart versions of hazmat placards.  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