19
Mar
(Beyond Pesticides, March 19, 2026) A study of water contamination in Protected Areas (PAs) in Brazil, published in Science of The Total Environment, highlights the pervasiveness of pesticides. “Our objective was to evaluate the effectiveness of these PAs in mitigating pesticide contamination in watercourses and to investigate how land use patterns influence the presence of pesticide residues,” the authors state. “We found pesticide compounds in biofilms [mutually beneficial community of microorganisms] both inside and outside PAs’ streams, with no buffer effect of these protected lands against herbicides, insecticides and fungicides, contrary to our expectations.” In analyzing epilithic biofilms, which are communities of microorganisms that adhere to submerged rocks and surfaces in aquatic ecosystems, the researchers find residues of 14 pesticide compounds and one metabolite across the 19 sampling sites, threatening aquatic organisms and ecosystem functioning. The authors say, “[M]onitoring epilithic biofilms in PAs provides valuable information by detecting pesticide compounds that analysis of surface water and sediments might miss.” Through various routes, such as runoff to waterways, leaching into groundwater, and aerial drift, pesticides are ubiquitous in the environment, even in remote and protected areas. As the testing of the freshwater epilithic biofilms in this study reveals 15 pesticide residues […]
Posted in Acetochlor, Agriculture, aminomethylphosphonic acid (AMPA), Aquatic Organisms, Biodiversity, Brazil, Carbaryl, Chlorpyrifos, contamination, Drift, Ecosystem Services, Fungicides, Glyphosate, Groundwater, Herbicides, Imidacloprid, Insecticides, Pendimethalin, Pesticide Drift, Pesticide Residues, tebuconazole, Water | No Comments »
26
Feb
(Beyond Pesticides, February 26, 2026) Published in PLOS ONE, research in Brazil “analyzed the impact of occupational/household chronic exposure to pesticides on the clinicopathological profile of breast cancer in rural women from Paraná southwest, a predominantly rural landscape with large pesticide uses,” finding that “pesticide exposure favors the occurrence of more aggressive breast cancer.” The study highlights the disproportionate risks of pesticides to farmworkers, focusing on women, as it compares exposed and unexposed populations and breast cancer tumor/disease characteristics. One of the study authors, Carolina Panis, PhD, discussed her earlier research at the Beyond Pesticides’ 42nd National Forum Series, The Pesticide Threat to Environmental Health: Advancing Holistic Solutions Aligned with Nature. In her previous work, Pesticide exposure and increased breast cancer risk in women population studies, Dr. Panis documents a number of pesticides that “can increase the risk of BC [breast cancer] development through various mutagenic [genetic mutations] and nonmutagenic mechanisms and can act directly as carcinogens or indirectly as biochemical modifiers and hormonal deregulators. The underlying mechanisms include endocrine disruption; genotoxicity; epigenetic changes [changes to gene function without changing DNA]; enhanced cell migration, invasion, and…” more. Dr. Panis and other researchers at the Forum support community-level understanding of the […]
Posted in 2,4-D, Agriculture, Atrazine, Brazil, Breast Cancer, Cancer, DNA Damage, Endocrine Disruption, Epigenetic, Glyphosate, Herbicides, Occupational Health, Women's Health | No Comments »
