Investigating the Photodegradation Mechanisms of Chlorpyrifos in Arctic Lacustrine Systems
Abstract
In the Arctic, organohalogen contaminants are subjected to a slew of environmental processes that affect their persistence and ecological impacts. Due to unique environmental conditions, photodegradation is a critical pathway for the transformation of contaminants that undergo long range transport to polar regions, which include some current use pesticides. Dissolved organic matter (DOM), ubiquitous to surface water, associates with poorly soluble contaminants and can affect their photodegradation. Previous research indicates that the photodegradation rate of the insecticide chlorpyrifos is enhanced by DOM. However, the specific role of Arctic-derived carbon pools in the DOM-mediated photodegradation is poorly understood. This study sought to identify and quantify the mechanistic components of chlorpyrifoss photodegradation due to Arctic-derived DOM in order to better predict the fate of this contaminant and similar compounds more broadly across Arctic systems.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 16, 2022
- Accession Number
- AD1171864
Entities
People
- Pippen E. Robinson
Organizations
- United States Naval Academy