19
Jul
(Beyond Pesticides, July 19, 2022) Banned pesticides still persistent in the environment pose an increased risk of hearing impairment for U.S. adults, according to research published this month in Scientific Reports. Although regular use of DDT and hexachlorobenzene (HCB) no longer occurs in the United States, exposure to these persistent chemicals can still occur through a range of sources, including air, water, sediment, soil and food. As new science continues to find harmful health effects of older pesticides, advocates say new laws are needed to ensure long term hazards don’t arise from the more than 1,200 active ingredients currently registered by the US Environmental Protection Agency (EPA) with little to no independent scientific oversight. Hearing loss affects nearly 40 million (~15%) American adults over age 18. While it is clear that common causes like aging and noise exposure can result in hearing loss, there has been increasing attention to the role environmental contaminants may be playing in hearing disorders. To explore any potential connection, researchers analyzed data from the long-running U.S. National Health and Nutrition Examination Survey (NHANES). Blood serum levels of the organochlorine insecticides HCB, p, p’-DDE (a breakdown product of DDT), trans-nonachlor, and dieldrin were compared against audiometry […]
Posted in Environmental Protection Agency (EPA), Hearing Loss, organochlorines, Uncategorized | No Comments »
30
Jul
(Beyond Pesticides, July 30, 2020) Simultaneous exposure to pesticides and noise from agricultural machinery increases farmworkers, risk of hearing loss, according to the study, “Hearing Loss in Agricultural Workers Exposed to Pesticides and Noise,” published in the journal Annals of Work Exposures and Health. Hearing loss is the 3rd most common health issue in the U.S., affecting eight million Americans. Although specific conditions like age, illness, and genetics, can mediate hearing loss, research suggests other factors can induce auricle (ear) damage, including medications, exposure to toxic chemicals (including pesticides), and loud, ongoing noise. Past studies find an association between hearing loss and pesticide exposure or noise exposure, alone. However, this study is one of the first to associate hearing loss with the additive effect to concurrent, persistent pesticide exposure, and noise. This research is significant as human senses are integral to everyday human activities, and it is vital to understand how chronic pesticide exposure can limit the body’s ability to function normally, for farmers and everyone alike. Researchers in the study note, “[I]t is necessary to understand what work-related factors are contributing to this high prevalence of hearing loss in [Thai] agricultural workers in order to develop effective interventions and […]
Posted in Agriculture, Alternatives/Organics, Disease/Health Effects, Hearing Loss, organophosphate, Oxidative Stress | No Comments »
