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@article{1409140,
author = {Socorro, Joanna and Lakey, Pascale S. J. and Han, Lei and Berkemeier, Thomas and Lammel, Gerhard and Zetzsch, Cornelius and Poschl, Ulrich and Shiraiwa, Manabu},
article_location = {WASHINGTON},
article_number = {23},
doi = {http://dx.doi.org/10.1021/acs.est.7b04307},
keywords = {POLYCYCLIC AROMATIC-HYDROCARBONS; MULTIPHASE CHEMICAL-KINETICS; SECONDARY ORGANIC AEROSOLS; CURRENTLY-USED PESTICIDES; PARTICLE PHASE STATE; REACTIVE UPTAKE; AMBIENT AIR; GAS UPTAKE; OZONOLYSIS KINETICS; RADICAL REACTIVITY},
language = {eng},
issn = {0013-936X},
journal = {ENVIRONMENTAL SCIENCE AND TECHNOLOGY},
title = {Heterogeneous OH Oxidation, Shielding Effects, and Implications for the Atmospheric Fate of Terbuthylazine and Other Pesticides},
url = {https://pubs.acs.org/doi/10.1021/acs.est.7b04307},
volume = {51},
year = {2017}
}
TY - JOUR
ID - 1409140
AU - Socorro, Joanna - Lakey, Pascale S. J. - Han, Lei - Berkemeier, Thomas - Lammel, Gerhard - Zetzsch, Cornelius - Poschl, Ulrich - Shiraiwa, Manabu
PY - 2017
TI - Heterogeneous OH Oxidation, Shielding Effects, and Implications for the Atmospheric Fate of Terbuthylazine and Other Pesticides
JF - ENVIRONMENTAL SCIENCE AND TECHNOLOGY
VL - 51
IS - 23
SP - 13749-13754
EP - 13749-13754
PB - AMER CHEMICAL SOC
SN - 0013936X
KW - POLYCYCLIC AROMATIC-HYDROCARBONS
KW - MULTIPHASE CHEMICAL-KINETICS
KW - SECONDARY ORGANIC AEROSOLS
KW - CURRENTLY-USED PESTICIDES
KW - PARTICLE PHASE STATE
KW - REACTIVE UPTAKE
KW - AMBIENT AIR
KW - GAS UPTAKE
KW - OZONOLYSIS KINETICS
KW - RADICAL REACTIVITY
UR - https://pubs.acs.org/doi/10.1021/acs.est.7b04307
L2 - https://pubs.acs.org/doi/10.1021/acs.est.7b04307
N2 - Terbuthylazine (TBA) is a widely used herbicide, and its heterogeneous reaction with OH radicals is important for assessing its potential to undergo atmospheric long-range transport and to affect the environment and public health. The apparent reaction rate coefficients obtained in different experimental investigations, however, vary by orders of magnitude depending on the applied experimental techniques and conditions. In this study; we used a kinetic multilayer model of aerosol chemistry with reversible surface adsorption and bulk diffusion (KM-SUB) in combination with a Monte Carlo genetic algorithm to simulate the measured decay rates of, TBA. Two experimental data sets available from different studies can be described with a consistent set of kinetic parameters resolving the interplay of chemical reaction, mass transport, and shielding effects. Our study suggests that mass transport and shielding effects can substantially extend the atmospheric lifetime of reactive pesticides from a few days to weeks, with strong implications for long-range transport and potential health effects of these substances.
ER -
SOCORRO, Joanna, Pascale S. J. LAKEY, Lei HAN, Thomas BERKEMEIER, Gerhard LAMMEL, Cornelius ZETZSCH, Ulrich POSCHL and Manabu SHIRAIWA. Heterogeneous OH Oxidation, Shielding Effects, and Implications for the Atmospheric Fate of Terbuthylazine and Other Pesticides. \textit{ENVIRONMENTAL SCIENCE AND TECHNOLOGY}. WASHINGTON: AMER CHEMICAL SOC, 2017, vol.~51, No~23, p.~13749-13754. ISSN~0013-936X. Available from: https://dx.doi.org/10.1021/acs.est.7b04307.
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