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of science environmental chemistry involves first understanding how the uncontaminated environment works which chemicals in what concentrations are present naturally and with what effects without this it would be impossible to accurately study the effects humans have on the environment through the release of chemicals environmental chemists draw traditional chemical concepts as well as sampling and analytical techniques 1 contaminant edit a contaminant is a substance present in nature at a level higher than fixed levels or that would not otherwise be there 2 3 this may be due to human activity and bioactivity the term contaminant is often used interchangeably with pollutant which is a substance that detrimentally impacts the surrounding environment 4 5 while a contaminant is sometimes a substance in the environment as a result of human activity but without harmful effects it is sometimes the case that toxic or harmful effects from contamination only become apparent at a later date 6 the medium such as soil or organism such as fish affected by the pollutant or contaminant is called a receptor whilst a sink is a chemical medium or species that retains and interacts with the pollutant such as carbon sink and its effects by microbes environmental indicators edit main article freshwater environmental quality parameters chemical measures of water quality include dissolved oxygen do chemical oxygen demand cod biochemical oxygen demand bod total dissolved solids tds ph nutrients nitrates and phosphorus heavy metals soil chemicals including copper zinc cadmium lead and mercury and pesticides see also category water quality indicators applications edit environmental chemistry often detect and identify the nature and source of pollutants these pollutants can include heavy metal contamination of land by industry these can then be transported into water bodies and be taken up by living organisms such as animals and plants 7 pahs polycyclic aromatic hydrocarbon in large bodies of water contaminated by oil spills or leaks many of the pahs are carcinogens and are extremely toxic they are regulated by concentration ppb using environmental chemistry and chromatography laboratory testing nutrients leaching from agricultural land into water courses which can lead to algal blooms and eutrophication 8 urban runoff of pollutants washing off impervious surfaces roads parking lots and rooftops during rain storms typical pollutants include gasoline motor oil and other hydrocarbon compounds metals nutrients and sediment soil 9 organometallic compounds 10 radiochemicals methods edit quantitative chemical analysis is a key part of environmental chemistry since it provides the data that frame most environmental studies 11 common analytical techniques used for quantitative determinations in environmental chemistry include classical wet chemistry such as gravimetric titrimetric and electrochemical methods more sophisticated approaches are used in the determination of trace metals and organic compounds metals are commonly measured by atomic spectroscopy and mass spectrometry atomic absorption spectrophotometry aas and inductively coupled plasma atomic emission icp aes or inductively coupled plasma mass spectrometric icp ms techniques organic compounds including pahs are commonly measured also using mass spectrometric methods such as gas chromatography mass spectrometry gc ms and liquid chromatography mass spectrometry lc ms tandem mass spectrometry ms ms and high resolution accurate mass spectrometry hr am offer sub part per trillion detection non ms methods using gcs and lcs having universal or specific detectors are still staples in the arsenal of available analytical tools radioactive materials are assayed by particle counters and scintillation counter bioassays and immunoassays are utilized for toxicity evaluations of chemical effects on various organisms polymerase chain reaction pcr is able to identify species of bacteria and other organisms through specific dna and rna gene isolation and amplification and is showing promise as a valuable technique for identifying environmental microbial contamination further reading edit clean water act analytical methods epa 2022 07 27 hazardous waste test methods sw 846 epa 2022 06 15 eaton andrew d greenberg arnold e rice eugene w clesceri lenore s franson mary ann h eds 2005 standard methods for the examination of water and wastewater 21 ed american public health association isbn 978 0 87553 047 5 also available on cd rom and online by subscription notable environmental chemists edit joan berkowitz paul crutzen nobel prize in chemistry 1995 philip gschwend alice hamilton john m hayes charles david keeling ralph keeling mario molina nobel prize in chemistry 1995 james j morgan clair patterson roger revelle sherry roland nobel prize in chemistry 1995 robert angus smith susan solomon werner stumm ellen swallow richards hans suess john tyndall see also edit environmental monitoring freshwater environmental quality parameters green chemistry green chemistry journal journal of environmental monitoring important publications in environmental chemistry list of chemical analysis methods references edit williams ian environmental chemistry a modular approach wiley 2001 isbn 0 471 48942 5 glossary to the buzzards bay watershed management plan archived from the original on 2016 10 09 retrieved 2006 03 23 american meteorological society glossary of meteorology archived 2011 09 20 at the wayback machine north carolina state university department of soil science glossary archived 2014 09 18 at the wayback machine global resource action center for the environment grace new york ny sustainable table dictionary archived 2012 08 24 at the wayback machine harrison r m edited by understanding our environment an introduction to environmental chemistry and pollution third edition royal society of chemistry 1999 isbn 0 85404 584 8 briffa jessica sinagra emmanuel blundell renald september 8 2020 heavy metal pollution in the environment and their toxicological effects on humans heliyon 6 9 e04691 bibcode 2020heliy 604691b doi 10 1016 j heliyon 2020 e04691 pmc 7490536 pmid 32964150 united states environmental protection agency epa washington dc protecting water quality from agricultural runoff document no epa 841 f 05 001 march 2005 epa protecting water quality from urban runoff document no epa 841 f 03 003 february 2003 sigel a 2010 sigel h sigel r k o eds organometallics in environment and toxicology metal ions in life sciences vol 7 cambridge rsc publishing isbn 978 1 84755 177 1 vanloon gary w duffy stephen j 2000 environmental chemistry oxford oxford pp 7 isbn 0 19 856440 6 further reading edit stanley e manahan environmental chemistry crc press 2004 isbn 1 56670 633 5 julian e andrews peter brimblecombe tim d jickells peter s liss brian reid 25 april 2013 an introduction to environmental chemistry john wiley sons isbn 978 1 118 68547 1 rene p schwarzenbach philip m gschwend dieter m imboden environmental organic chemistry second edition wiley interscience hoboken new jersey 2003 isbn 0 471 35750 2 johan alfredo linthorst notes on environmental engagement within the american chemical society 1960 1990 bulletin for the history of chemistry 50 1 pp 52 56 2025 ncert xi textbook unit 14 external links edit list of links for environmental chemistry from the www virtual library international journal of environmental analytical chemistry v t e environmental science main fields atmospheric science biogeochemistry ecology environmental chemistry geosciences hydrology limnology oceanography soil science related fields biology chemistry green ecological economics environmental design environmental economics environmental engineering environmental health epidemiology environmental studies environmental humanities environmental statistics environmental toxicology geodesy physics radioecology sustainability science systems ecology urban ecology applications energy conservation environmental technology natural resource management pollution control public transport encouragement recycling remediation renewable energy road ecology sewage treatment urban metabolism water purification waste management lists degrees journals research institutes glossary environment by year see also human impact on the environment sustainability technogaianism category scientists commons environment portal wikiproject v t e branches of chemistry glossary of chemical formulae list of biomolecules list of inorganic compounds periodic table analytical calorimetry characterization chromatography gc hplc crystallography electroanalytical methods elemental analysis instrumental chemistry mass spectrometry ei icp maldi separation process spectroscopy ir raman uv vis nmr titration wet chemistry theoretical computational chemistry mathematical chemistry molecular modelling molecular mechanics molecular dynamics molecular geometry vsepr theory quantum chemistry physical chemical kinetics chemical physics molecular physics chemical thermodynamics cryochemistry electrochemistry spectroelectrochemistry photoelectrochemistry equilibrium chemistry femtochemistry interface and colloid science micromeritics mechanochemistry microwave chemistry photochemistry sonochemistry spectroscopy spin chemistry structural chemistry surface science thermochemistry inorganic ceramic chemistry cluster chemistry coordination chemistry magnetochemistry organometallic chemistry organolanthanide chemistry solid state chemistry organic dynamic covalent chemistry enantioselective synthesis fullerene chemistry organic reactions organic synthesis petrochemistry physical organic chemistry polymer chemistry retrosynthetic analysis stereochemistry alkane stereochemistry total synthesis semisynthesis biological biochemistry molecular biology cell biology bioinorganic chemistry bioorganic chemistry bioorganometallic chemistry biophysical chemistry chemical biology bioorthogonal chemistry clinical chemistry medicinal chemistry pharmacology neurochemistry interdisciplinarity nuclear chemistry radiochemistry radiation chemistry actinide chemistry cosmochemistry astrochemistry stellar chemistry geochemistry biogeochemistry photogeochemistry environmental chemistry atmospheric chemistry ocean chemistry clay chemistry carbochemistry food chemistry carbohydrate chemistry food physical chemistry agricultural chemistry soil chemistry chemistry education amateur chemistry general chemistry clandestine chemistry forensic chemistry forensic toxicology post mortem chemistry nanochemistry supramolecular chemistry chemical synthesis green chemistry click chemistry combinatorial chemistry biosynthesis chemical engineering stoichiometry materials science metallurgy ceramic engineering polymer science see also history of chemistry nobel prize in chemistry timeline of chemistry of element discoveries the central science chemical reaction catalysis chemical element chemical compound atom molecule ion chemical substance chemical bond alchemy quantum mechanics category commons portal wikiproject v t e sustainability outline index principles anthropocene environmentalism global governance human impact on the environment planetary boundaries development consumption anthropization anti consumerism circular economy durable good earth overshoot day ecological footprint ethical global trade of secondhand clothing green consumption micro sustainability over consumption product stewardship simple living social return on investment steady state economy sustainability advertising brand marketing myopia sustainable consumer behaviour market systemic change resistance tragedy of the commons technology appropriate building integrated photovoltaics environmental technology heat recovery steam generator heat recovery ventilation natural building sustainable architecture sustainable design sustainable industries sustainable packaging biodiversity biosecurity biosphere conservation biology endangered species holocene extinction invasive species energy carbon footprint renewable energy sustainable energy food civic agriculture climate smart agriculture community supported agriculture cultured meat sustainable agriculture sustainable diet sustainable fishery water air well condenser bioretention bioswale blue roof catchwater constructed wetland detention basin dew pond footprint hydroelectricity hydropower infiltration basin irrigation tank marine energy micro hydro ocean thermal energy conversion pico hydro rain garden rainwater harvesting rainwater tank reclaimed water retention basin run of the river hydroelectricity scarcity security small hydro sustainable drainage system tidal power tidal stream generator tree box filter water conservation water heat recycling water recycling shower water sensitive urban design world population control demographic transition dependency ratio list family planning intergenerational equity population ageing sustainable population accountability corporate environmental responsibility corporate social responsibility environmental accounting environmental full cost accounting environmental planning generational accounting sustainability accounting measurement metrics and indices reporting standards and certification sustainable yield economic debt sustainability analysis fiscal sustainability green accounting applications advertising art business city cultural sustainability climate finance community disinvestment eco capitalism eco cities eco investing eco socialism ecovillage environmental finance green economy construction fashion finance gardening geopark green development infrastructure marketing green anarchism green roof greening impact investing landscape livelihood living market organic movement organizations procurement refurbishment socially responsible business socially responsible marketing sanitation solar cooker sourcing space sustainability organization tourism transport urban drainage systems urban infrastructure sustainable management environmental fisheries forest humanistic capitalism landscape materials natural resource pallet crafts planetary reclaimed lumber recycling appliance recycling automotive oil recycling bottle recycling by product drug recycling electronic waste recycling energy recycling mobile phone recycling paint recycling plastic recycling rates by country textile recycling timber recycling tire recycling resource recovery reuse waste waste to energy agreements and conferences un conference on the human environment stockholm 1972 brundtlandt commission report 1983 our common future 1987 earth summit 1992 rio declaration on environment and development 1992 agenda 21 1992 convention on biological diversity 1992 lisbon principles 1997 earth charter 2000 un millennium declaration 2000 earth summit 2002 rio 10 johannesburg un conference on sustainable development rio 20 2012 sustainable development goals 2015 unesco mondiacult conferences category lists science studies degrees ...