An Analysis of Agricultural Pesticide Practices and Anthropogenic Footprints in Himalayan Freshwaters of Nepal

Kshitiz Kandel, Bed Mani Dahal, Chhatra Mani Sharma, Manish Devkota, Bakhat Rawat and Prabesh Kandel

Sustainable Agriculture Research, 2025, vol. 14, issue 1, 11

Abstract: The growing number of agro-vets in Nepal reflects an increasing demand for pesticides, highlighting the need to investigate the types, toxicity, and public awareness of associated hazards. This study collected data from the oldest agro-vet in Kathmandu Valley, documenting the specific pesticides used. Although the data on pesticide volume is limited, the study is significant as it was carried out with limited research resources, both using synthesis data and primary data over a decade ago. The data was systematically organized in MS-Excel to provide a detailed overview of each pesticide. Additionally, the study examined the anthropogenic footprint, focusing on human activities such as population density and agricultural practices. The population size was plotted by calculating the overall population of districts touched by the river basins, extracted from the census. The percentage of gross national product was presented graphically to illustrate the anthropogenic features in each basin from high mountain terrain to lowlands. The lower sections of Nepal’s Himalayan rivers and the middle segments of the Bagmati River face significant human and agricultural pressures, exacerbated by the widespread use of hazardous pesticides in Kathmandu, necessitating stringent regulatory actions, regular monitoring programs, and enhanced research efforts to assess and mitigate associated risks. These findings shed light on the historical background of the introduction of pesticides in Nepal and the most common types of pesticide in the Kathmandu valley, while the analysis of anthropogenic footprints offer a framework for evaluating human-induced impacts on the Himalayan freshwater systems of Nepal.

Date: 2025
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