The DOI matches its Crossref record; 73 of the 73 references it cites were found in a registry or an index.
Pesticide Photolysis in Prairie Potholes: Probing Photosensitized Processes
Abstract
Prairie pothole lakes (PPLs) are glacially derived, ecologically important water bodies found in central North America and represent a unique setting in which extensive agriculture occurs within wetland ecosystems. In the Prairie Pothole Region (PPR), elevated pesticide use and increasing hydrologic connectivity have raised concerns about the impact of nonpoint source agricultural pollution on the water quality of PPLs and downstream aquatic systems. Despite containing high dissolved organic matter (DOM) levels, the photoreactivity of the PPL water and the photochemical fate of pesticides entering PPLs are largely unknown. In this study, the photodegradation of sixteen pesticides was investigated in PPL waters sampled from North Dakota, under simulated and natural sunlight. Enhanced pesticide removal rates in the irradiated PPL water relative to the control buffer pointed to the importance of indirect photolysis pathways involving photochemically produced reactive intermediates (PPRIs). The steady-state concentrations of carbonate radical, hydroxyl radical, singlet oxygen, and triplet-excited state DOM were measured and second-order rate constants for reactions of pesticides with these PPRIs were calculated. Results from this study underscore the role of DOM as photosensitizer in limiting the persistence of pesticides in prairie wetlands through photochemical reactions.
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Cites
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Evaluating Pesticide Degradation in the Environment: Blind Spots and Emerging Opportunities
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Finding Fluorine: Photoproduct Formation during the Photolysis of Fluorinated Pesticides
Bhat, A. P., Pomerantz, W. C. K., & Arnold, W. A. (2022) · Environmental Science & Technology · doi:10.1021/acs.est.2c04242 · Cited by 49
Self-citationRole of carbon fiber electrodes and carbonate electrolytes in electrochemical phenol oxidation
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Metadata
- Authors
- Zeng, T., & Arnold, W. A.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-11-29
- Volume
- 47
- Issue
- 13
- Pages
- 6735-6745
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2007757700
- Cited by
- 273
- References
- 73
- FWCI
- 12.33
- Type
- journal article
- Language
- en
- Open access
- closed
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