Assessing pesticide pollution in surface water of two basins in western Mexico: spatiotemporal variability, potential ecological risk assessment, and pesticides prioritization

Multi-Residue Occurrence and Environmental Risk Assessment in Surface Waters Under Intensive Agricultural Influence

Intensive agricultural activities have increased organic pollutant contamination of water bodies, posing significant risks to water quality, aquatic ecosystems, biodiversity, and human health. This study investigated the occurrence of 40 pesticides in surface waters of the Pirapó River Basin and assessed their potentia...

Pesticides and Metal Contaminants in Lake Chapala, Mexico: Differences in Bioaccumulation and Associated Health Risks.

Lake Chapala, Mexico's largest freshwater lake and primary drinking water source for approximately 5 million people, lacks comprehensive pesticide and metal contamination assessment across compartments. Unlike previous single-matrix or single-class studies, this is the first seasonal multi-matrix assessment of 17 pesti...

PESTICIDE BIOACCUMULATION IN FISH FROM AN AGRICULTURAL WATERSHED: PATTERNS, DRIVERS, AND IMPLICATIONS FOR MONITORING.

Pesticide occurrence, composition, and bioaccumulation patterns in fish from the San Salvador River watershed (Uruguay) were evaluated by integrating biological, chemical, and environmental data. A total of 158 fish samples representing 31 species were analyzed across four seasons at nine sampling sites spanning a long...

Occurrence, spatiotemporal distribution, and risk assessment of herbicides in a subtropical agricultural watershed

Integrated assessment of pesticides, inorganic ions, and health risks in drinking water from Missal, a rural agricultural municipality in Southern Brazil.

Missal is a small municipality in Paraná, southern Brazil, with an economy predominantly based on soybean and corn cultivation. This study evaluated the occurrence of pesticides and inorganic ions in nine groundwater-derived drinking water sources and one surface water reference site. A total of 120 water samples were...

Pollution and ecological risk of the potentially toxic elements (arsenic, lead, and cadmium) in acid mine drainage-impacted waters of Lake Uru Uru and tributaries, a Ramsar site, Bolivia

Acid mine drainage (AMD), owing to its high content of potentially toxic elements (PTEs), impacts ecosystem health through the contamination of tributary rivers. This study evaluates the spatial and temporal distribution of arsenic (As), lead (Pb), and cadmium (Cd) in the surface waters and AMD of the Lake Uru Uru wate...