Revolatilisation of soil-accumulated pollutants triggered by the summer monsoon in India
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00106068" target="_blank" >RIV/00216224:14310/18:00106068 - isvavai.cz</a>
Result on the web
<a href="https://www.atmos-chem-phys.net/18/11031/2018/" target="_blank" >https://www.atmos-chem-phys.net/18/11031/2018/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5194/acp-18-11031-2018" target="_blank" >10.5194/acp-18-11031-2018</a>
Alternative languages
Result language
angličtina
Original language name
Revolatilisation of soil-accumulated pollutants triggered by the summer monsoon in India
Original language description
Persistent organic pollutants that have accumulated in soils can be remobilised by volatilisation in response to chemical equilibrium with the atmosphere. Clean air masses from the Indian Ocean, advected with the onset of the summer monsoon, are found to reduce concentrations of hexachlorocyclohexane (HCH), dichlorodiphenyltrichloroethane (DDT) and its derivatives, endosulfan and polychlorinated biphenyls (PCBs) in air at a mountain site (all in the range 5-20 pg m(-3)) by 77 %, 70 %, 82 % and 45 %, respectively. The analysis of fugacities in soil and air suggest that the arrival of summer monsoon triggers net volatilisation or enhances ongoing revolatilisation of the now-banned chemicals HCH and PCBs from background soils in southern India. The response of the air-soil exchange was modelled using a regional air pollution model, WRF-Chem PAH/POP. The results suggest that the air is increasingly polluted during transport by the south-westerly monsoon winds across the subcontinent. Using a multidecadal multimedia mass balance model, it is found that air-surface exchange of HCH and DDT have declined since the ban of these substances from agriculture, but remobilisation of higher chlorinated PCBs may have reached a historical high, 40 years after peak emission.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10509 - Meteorology and atmospheric sciences
Result continuities
Project
<a href="/en/project/LM2015051" target="_blank" >LM2015051: Research Centre for Toxic Compounds in the Environment</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Atmospheric Chemistry and Physics
ISSN
1680-7316
e-ISSN
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Volume of the periodical
18
Issue of the periodical within the volume
15
Country of publishing house
DE - GERMANY
Number of pages
10
Pages from-to
11031-11040
UT code for WoS article
000440940600003
EID of the result in the Scopus database
2-s2.0-85051276479