Assessing pesticide uses with potentials for down-the-drain transport to wastewater in California
| Autor: | Robert Budd, Nan Singhasemanon, Jennifer Teerlink, Yuzhou Luo, Yina Xie |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Environmental Engineering
010504 meteorology & atmospheric sciences 010501 environmental sciences Cyfluthrin Pesticide 01 natural sciences Pollution Aquatic organisms Cypermethrin Toxicology chemistry.chemical_compound chemistry Wastewater Imidacloprid parasitic diseases medicine Environmental Chemistry Environmental science Waste Management and Disposal Fipronil 0105 earth and related environmental sciences Permethrin medicine.drug |
| Zdroj: | The Science of the total environment. 773 |
| ISSN: | 1879-1026 |
| Popis: | Pesticides and degradates are ubiquitously detected in municipal wastewater influent in the United States. However, little detailed information exists on their sources. The aim of this study is to investigate California Pesticide Use Report (PUR) and sales data to identify pesticide uses with a high potential for indoor down-the-drain (DtD) transport. The DtD transport of pesticides could result from direct applications to drains and sewers or through indirect activities such as washing pets, treated textiles, laundries, and cleaning surfaces treated with pesticides. An initial screening on pesticide products registered in California with DtD potentials showed that fipronil, imidacloprid, and seven pyrethroids were pesticides of concern due to the relatively high sales in DtD use patterns and high toxicity to aquatic organisms; and thus prioritized for additional evaluation. Uses and sales data of products containing the selected pesticides were analyzed for mass of active ingredient applied with specific DtD pathways and by different user groups. Professional uses were retrieved from the PUR and consumer uses were estimated by comparing PUR data to sales data. Overall, approximately 38,615 kg fipronil, 44,561 kg imidacloprid, and 240,550 kg pyrethroids were used annually in California from 2011 to 2015 with some likelihoods of DtD transport. The shares of professional use ranged from 56% (cypermethrin) to 98% (cyfluthrin), depending on the pesticide, with the majority of the mass applied in and around structures and for some pesticides (imidacloprid and permethrin) on landscapes as well. The remaining mass was applied by consumers on various DtD sources, including pet treatments (fipronil, imidacloprid, and permethrin), treated textiles (permethrin), indoor-only uses (cypermethrin), and mixed indoor/outdoor or outdoor-only applications (other pyrethroids). Results from this study help elucidate the relative significance of specific DtD pathways and pesticide occurrence in California waste streams. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect