Runoff pattern of pesticides from paddy fields in the catchment area of Rikimaru reservoir, Japan

Nagafuchi, Osamu; Inoue, Takanobu; Ebise, Senichi

doi:10.2166/wst.1994.0327

Cited by 29 publications

(13 citation statements)

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“…Pesticide occurrence in water supplies is a concern for water-quality assessment, since a huge number of pesticides are widely used in agriculture (Nagafuchi et al 1994;Kimbrough and Litke 1996). Pesticides are a group of hazardous materials with potential risk to human health (Ayranci and Hoda 2005).…”

Section: Pesticidesmentioning

confidence: 99%

Influences of natural and anthropogenic factors on surface and groundwater quality in rural and urban areas

Khatri¹,

Tyagi²

2014

Frontiers in Life Science

750

283

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Although water constitutes 71% of the earth's surface, only 0.3% of it is available as fresh water for human use. Moreover, the quality of fresh water in ground and surface systems is of great concern, as potable water needs to have appropriate mineral content. Ground and surface water quality in rural and urban environments is affected by both natural processes and anthropogenic influences. Because of this, water is becoming scarcer as the population increases across the world. Natural processes leading to changes in water quality include weathering of rocks, evapotranspiration, depositions due to wind, leaching from soil, run-off due to hydrological factors, and biological processes in the aquatic environment. These natural processes cause changes in the pH and alkalinity of the water, and also phosphorus loading, increase in fluoride content and high concentrations of sulphates. Anthropogenic factors affecting water quality include impacts due to agriculture, use of fertilizers, manures and pesticides, animal husbandry activities, inefficient irrigation practices, deforestation of woods, aquaculture, pollution due to industrial effluents and domestic sewage, mining, and recreational activities. These anthropogenic influences cause elevated concentrations of heavy metals, mercury, coliforms and nutrient loads. This paper studies the effects of natural processes and human influences in rural and urban aquatic systems. Pollution due to environmental parameters such as heavy metal pollution, heavy metals and bacterial and pathogenic contamination of both urban and rural areas is discussed in detail.

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Section: Pesticidesmentioning

confidence: 99%

Influences of natural and anthropogenic factors on surface and groundwater quality in rural and urban areas

Khatri¹,

Tyagi²

2014

Frontiers in Life Science

750

283

View full text Add to dashboard Cite

show abstract

“…e potential for them being discharged into public water is another factor that should be taken into account. Previous reports based on eld observation 10,[16][17][18] and model simulation 7,18,19) have indicated that surface runo during the earlier period of high pesticide concentration in paddy water causes a signi cant loss of pesticides from rice paddies. In terms of the e ect on acute toxicity to an aquatic ecosystem, the estimation of the short-term discharge (for example, daily or hourly discharge) in a high runo period is important.…”

Section: Introductionmentioning

confidence: 99%

Effect of percolation flow on herbicide loss from rice paddies

et al. 2012

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e fate and transport of pretilachlor, one of the most widely used rice-paddy herbicides in Japan, were monitored in a rice paddy plot for 28 days a er its application in the ve study years. e e ect of the percolation rate on herbicide loss was investigated.e concentration of pretilachlor in the paddy water was at its highest level within 2 days of application. e maximum concentration in percolated water was lower, and it was reached 1 or 2 days later than that in the paddy water. Almost all the pretilachlor loss was caused by percolation. e pretilachlor loss, as estimated from the amount that was applied and the cumulative percolation loss, ranged from 7.4 to 16.3%. In the ve study years, the average percolation rate for the 7 days following application ranged from 11.5 to 29.3 mm/day. e pretilachlor loss increased proportionally with the percolation rate for 7 days following application.

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“…In Japan, a number of pesticides have been detected in river and lake systems especially in the period shortly after herbicide application in the fields. [1][2][3][4][5] The impact of pesticides in surface water on fish, algae and aquatic plants has been reported. 6,7) Therefore, public concern about the low-dose, longterm effect of these pesticides on aquatic flora as well as human health is increasing.…”

Section: Introductionmentioning

confidence: 99%

Applicability of ELISA in pesticide monitoring to control runoff of bensulfuron-methyl and simetryn from paddy fields

Watanabe

Nguyen²,

Komany

et al. 2006

J. Pestic. Sci.

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The applicability of ELISA kits was evaluated as an alternative to monitor bensulfuron-methyl and simetryn behavior in paddy water under intermittent (Plot 1) and continuous (Plot 2) irrigation schemes. Simetryn concentrations in both plots decreased exponentially from the peak of the first day. However, the simetryn kit systematically underestimated by a factor of 0.79 as compared to the GC method. Bensulfuron-methyl concentrations exhibited similar dissipation kinetics in paddy water and the drainage water. The bensulfuron-methyl kit was capable of distinguishing spatial variations of concentrations in the paddy field. The ELISA kits clearly indicated differences in the loss of both herbicides between the two plots and therefore may be useful for evaluating the water management practice of pesticide runoff control in paddy fields.

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Runoff pattern of pesticides from paddy fields in the catchment area of Rikimaru reservoir, Japan

Cited by 29 publications

References 0 publications

Influences of natural and anthropogenic factors on surface and groundwater quality in rural and urban areas

Influences of natural and anthropogenic factors on surface and groundwater quality in rural and urban areas

Effect of percolation flow on herbicide loss from rice paddies

Applicability of ELISA in pesticide monitoring to control runoff of bensulfuron-methyl and simetryn from paddy fields

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