Surface water monitoring for pesticides in agricultural areas of California is one of the California Department of Pesticide Regulation’s (CDPR’s) key environmental monitoring activities. The Salinas, Santa Maria and Imperial valleys have previously been designated as high priority areas for long-term surface water monitoring due to high pesticide use. This 2013 study is a continuation of the agricultural monitoring project.
Beleid en debat
Pesticide occurrence was determined in two suburban surface waters in eastern Massachusetts, USA during 2009 and 2010. Out of 118 collected samples, 45 samples showed detections of one or more target pesticides. Among the herbicides, 2,4-D was the most frequently detected and imidacloprid was the most frequently detected insecticide. Regulatory phaseout of chlorpyrifos and diazinon from residential use by 2004 was reflected in the results by the absence of chlorpyrifos detections and lower detection frequencies of diazinon.
In 2010, my life changed when Dr Henk Tennekes and I traded books. His was: The systemic insecticides: a disaster in the making and ours was: The Year of the Bumblebee: Observations in a small Nature Reserve. Dr Henk Tennekes, an independent toxicologist based in the Netherlands, was the first researcher to recognise the extreme toxicity of low levels of systemic neonicotinoid insecticides that have become widespread in the environment.
Regional Environment Awareness Cameron Highlands (REACH) president Ramakrishnan Ramasamy said most rivers in the highland, known for its tourism and agriculture, are heavily polluted. He said data from the Department of Environment (DoE) and the Drainage and Irrigation Department (DID) showed that only about 10 per cent of 123 rivers were in Class I and Class II, while the remainder were in Class III and Class IV. He also said three rivers had been declared biologically dead, and came under Class V of the classification.
New monitoring in the Bay Delta shows that the water is a soup of urban and agricultural insecticides, herbicides and fungicides. When combined, pesticides at sublethal levels can have deadly synergistic effects on fish. “The Sacramento River and San Joaquin River have been monitored for years, but historically there has been little monitoring in the Delta itself,” says Michelle Hladik, an environmental chemist who leads the USGS Pesticide Fate Research Group.
Der Schutz der Tiere, Pflanzen und ihrer Lebensräume im Kanton Zürich reicht trotz einigen Erfolgen nicht aus. Die Fachstelle Naturschutz kann zwar laufende Massnahmen weiterführen. Für mehr fehlen ihr jedoch meist die Mittel. Der durchaus naturverbundene Baudirektor Markus Kägi hob an der Präsentation hervor, der Mensch sei nicht nur Geniesser und Nutzer, sondern habe eine Verpflichtung gegenüber der Natur.
In 2016 groeide voor het eerst sinds 2010 het aantal geregistreerde biologische boerenbedrijven harder dan het aantal biologische handels- en verwerkingsbedrijven. Er zijn nu 1831 boerenbedrijven geregistreerd bij Skal Biocontrole. Door de krapte in het aanbod van biologische grondstoffen groeide het aantal handelsbedrijven langzamer, met tien procent naar 2.586. Steeds meer provincies kiezen ervoor om biologische landbouw te stimuleren.
Neonicotinoid insecticides are widespread in surface waters across the agriculturally intensive Midwestern United States. We report for the first time the presence of three neonicotinoids in finished drinking water and demonstrate their general persistence during conventional water treatment. Periodic tap water grab samples were collected at the University of Iowa over 7 weeks in 2016 (May−July) after maize/soy planting. Clothianidin, imidacloprid, and thiamethoxam were ubiquitously detected in finished water samples at concentrations ranging from 0.24 to 57.3 ng/L.
One of the most dangerous pesticides, neonicotinoids, has been found in drinking water, a new study reveals. Neonicotinoids, most of which were released in the 1990s, were designed to be the most environmentally-friendly chemicals on the market and soon became the most widely used, especially in the Midwest. The compounds don't just coat leaves and stems but work their way into plant tissue, meaning fewer sprays are needed. But the neonics, as they are nicknamed, became reputable for being something else - a bee killer, wreaking havoc on insect nervous systems.
Umweltorganisationen haben vom Bundesrat angesichts der alarmierenden Resultate der Gewässeruntersuchungen einen wirkungsvollen Pestizidreduktionsplan gefordert. Denn über die Nahrungsmittelkette sei auch der Mensch vom giftigen Pestizidcocktail betroffen. Pro Natura spricht von alarmierenden Zuständen. Der Unmut in der Bevölkerung über den Pestizidmix in den Bächen sei gross, schreibt die Naturschutzorganisation in einer Mitteilung vom Dienstag. Dies zeigten auch zwei kürzlich lancierte Volksinitiativen für sauberes Trinkwasser und gegen synthetische Pestizide.