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排序方式: 共有101条查询结果,搜索用时 15 毫秒
31.
Nain Anil Lohchab Rajesh Kumar Singh Kulbir Kumari Mikhlesh Saini Jitender Kumar 《Journal of Material Cycles and Waste Management》2021,23(6):2192-2207
Journal of Material Cycles and Waste Management - Recirculation of the leachate using bioreactor technology for in-situ treatment of leachate is an efficient method for reducing the contaminants... 相似文献
32.
Senarathne Sachintha Jayawardana Jayawardana Mudiyanselage Chandramali Kumari Edirisinghe Edirisinghe Appuhamilage Nandana Viraj Chandrajith Rohana 《Environmental science and pollution research international》2021,28(13):15701-15715
Environmental Science and Pollution Research - The Walawe river basin is one of the important watersheds in Sri Lanka subjected to water scarcity due to intensive exploitation for irrigation and... 相似文献
33.
Monitoring of Pesticide Residues in Fruits 总被引:1,自引:0,他引:1
Fruit samples of ber, grapes and guava analysed for pesticide residues employing multiresidue analysis by gas liquid chromatography equipped with ECD and NPD detectors and capillary columns showed contamination with organochlorine, synthetic pyrethroid and organophosphate insecticides. Among organochlorines, HCH, DDT and endosulfan were detected in almost all the samples. Residues of HCH and DDT were maximum in ber followed by grapes and guava where as of endosulfan were maximum in guava followed by grapes and ber. All the fruit samples showed the presence of residues with one or the other group of pesticides. Residues of none of the pesticides exceeded the MRL values in any sample. On the basis of these studies, it is suggested that monitoring studies should be extended to other fruits grown in different agro climatic regions which may serve as basis for future policy in chemical use. 相似文献
34.
Kirti Avishek Gopal Pathak M. S. Nathawat Usha Jha Neeta Kumari 《Environmental monitoring and assessment》2010,167(1-4):617-623
Fluoride in groundwater is known to contaminate the water sources globally. Jharkhand, one of the states in the eastern part of India, is known to have excessive fluoride content in groundwater sources. The present work involves assessment of water quality with special reference to fluoride in Majhiaon block of Garwa district in Jharkhand. Iron, nitrate and arsenic were also tested for the water samples collected from site. Eight hundred forty samples were tested for fluoride on site using colourimetry method, and one tenth of the samples were brought to laboratory for iron, nitrate, arsenic and fluoride analysis. Results show that 402 samples were having fluoride above permissible limit. Iron and nitrate were found to be beyond permissible limits in 302 and 286 water samples, respectively. More than 50% of samples collected from school had fluoride levels above permissible limits. Arsenic was well within the limits. However, few samples shown were excessive of iron and nitrate. 相似文献
35.
Kumari A Sinha RK Gopal K Lata S 《Journal of environmental biology / Academy of Environmental Biology, India》2002,23(3):279-281
Concentrations of DDT, HCH, aldrin and endosulfan were determined in river dolphins from the River Ganges, Patna. Among the organochlorines studied in the dolphins, DDT concentration was highest followed by HCH. This shows exposure of dolphins to these organochlorine pesticides. Presences of organochlorines to higher degree in tissues suggest that the river dolphins be at greater risk due to pesticidal contamination of the river system. 相似文献
36.
Kumar Sanjeev Singh Ritu Kumari Nisha Karmakar Susmita Behera Monalisha Siddiqui Arif Jamal Rajput Vishnu D. Minkina Tatiana Bauddh Kuldeep Kumar Narendra 《Environmental science and pollution research international》2021,28(6):6267-6288
Environmental Science and Pollution Research - Coronavirus disease 2019 (COVID-19) has emerged as a significant public health emergency in recent times. It is a respiratory illness caused by the... 相似文献
37.
Balasubramani Sundararajan Rajendhiran Thamaraiselvi Moola Anil Kumar Diana Ranjitha Kumari Bollipo 《Environmental science and pollution research international》2017,24(17):15125-15133
Environmental Science and Pollution Research - It is believed that nanoemulsions were emerged as a promising candidate to improve the qualities of natural essential oil towards antimicrobial and... 相似文献
38.
Shyam Lal Sethuraman Venkataramani Manish Naja Jagdish Chandra Kuniyal Tuhin Kumar Mandal Pradip Kumar Bhuyan Kandikonda Maharaj Kumari Sachchida Nand Tripathi Ujjaini Sarkar Trupti Das Yerramsetti Venkata Swamy Kotalo Rama Gopal Harish Gadhavi Modathi Kottungal Satheesh Kumar 《Environmental science and pollution research international》2017,24(26):20972-20981
Surface ozone is mainly produced by photochemical reactions involving various anthropogenic pollutants, whose emissions are increasing rapidly in India due to fast-growing anthropogenic activities. This study estimates the losses of wheat and rice crop yields using surface ozone observations from a group of 17 sites, for the first time, covering different parts of India. We used the mean ozone for 7 h during the day (M7) and accumulated ozone over a threshold of 40 ppbv (AOT40) metrics for the calculation of crop losses for the northern, eastern, western and southern regions of India. Our estimates show the highest annual loss of wheat (about 9 million ton) in the northern India, one of the most polluted regions in India, and that of rice (about 2.6 million ton) in the eastern region. The total all India annual loss of 4.0–14.2 million ton (4.2–15.0%) for wheat and 0.3–6.7 million ton (0.3–6.3%) for rice are estimated. The results show lower crop loss for rice than that of wheat mainly due to lower surface ozone levels during the cropping season after the Indian summer monsoon. These estimates based on a network of observation sites show lower losses than earlier estimates based on limited observations and much lower losses compared to global model estimates. However, these losses are slightly higher compared to a regional model estimate. Further, the results show large differences in the loss rates of both the two crops using the M7 and AOT40 metrics. This study also confirms that AOT40 cannot be fit with a linear relation over the Indian region and suggests for the need of new metrics that are based on factors suitable for this region. 相似文献
39.
Jeppu Gautham P. Janardhan Jayalal Kaup Shivakumara Janardhanan Anish Mohammed Shakeib Acharya Sharath 《Journal of Material Cycles and Waste Management》2022,24(1):97-110
Journal of Material Cycles and Waste Management - Biomass from various sources such as cow dung is a significant source of renewable energy (as biogas) in many regions globally, especially... 相似文献
40.