Monitoring and spatiotemporal variations of pyrethroid insecticides in surface water, sediment, and fish of the river Chenab Pakistan
| Autor: | Abdullah Yasar, Muhammad Imran Khan, Ghazala Riaz, Javed Iqbal, Muhammad Kashif, Rizwan Rasheed, Sidra Siddique, Yusra Mahfooz, Amtul Bari Tabinda, Adeel Mahmood |
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| Rok vydání: | 2017 |
| Předmět: |
Geologic Sediments
Insecticides 010504 meteorology & atmospheric sciences Health Toxicology and Mutagenesis Bifenthrin 010501 environmental sciences 01 natural sciences Cypermethrin Toxicology chemistry.chemical_compound Spatio-Temporal Analysis Rivers Pyrethrins medicine Environmental Chemistry Animals Pakistan 0105 earth and related environmental sciences Pyrethroid Fishes Sediment General Medicine Environmental Exposure Pollution Deltamethrin chemistry Environmental science Headworks Surface water Permethrin medicine.drug Environmental Monitoring |
| Zdroj: | Environmental science and pollution research international. 25(23) |
| ISSN: | 1614-7499 |
| Popis: | There is a serious concern regarding freshwater resources of Pakistan which have been mismanaged and now are depleting extensively due to other reasons like intensive application of agricultural pesticides and insecticides. The present study was conducted to determine the concentrations of cypermethrin, deltamethrin, permethrin, and bifenthrin in the samples of water, sediments, and fish collected from various locations of River Chenab, Pakistan, during summer and winter seasons. These locations include namely Marala, Khanki, Qadirabad, and Trimu Headworks. High-performance liquid chromatography (HPLC) was deployed for analysis and determination of pyrethroid concentrations in these samples. The analytics show the order of pyrethroid concentrations in river as fish> sediment>water. Whereas maximum concentrations of 0.472 μg g−1 found in fish and minimum concentrations were determined in water, i.e., 0.087 μg L−1 at the sampling locations of Trimu and Marala headworks, respectively. Moreover, highest mean concentrations of pyrethroid, i.e., 1.248 μg g−1 in fish were detected in winter season as compared to summers, i.e., 0.087 μg L−1. However, all the values of pyrethroid were found to be lower than the maximum permissible levels specified by EU and WHO-FAO. Whereas the levels of deltamethrin and permethrin in water were found much higher than the specific limits set by EU. |
| Databáze: | OpenAIRE |
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