Nitrate And Pesticide Contamination In
Water Supplies Of The Izmir Region
Author(s)
B. Ovez, M. Yuksel & M. Saglam
Abstract
We investigated the ground water quality of a typical agricultural area of the
Agean Region, in the İzmir Districts, concerning nitrate and pesticide pollution.
Elevated nitrate and pesticide concentrations in drinking water present a potential
risk to public health. The ground water was sampled from wells that are used as
a local drinking water supply and for the irrigation of farms. The results indicate
that the ground water of these areas has started to be contaminated by nitrate
because of fertilizer use. At one location, the maximum contamination levels for
pesticides in drinking water were exceeded by three pesticides (propargit,
endosulfan, fenitrothion).
Keywords: drinking water, maximum contamination level, nitrate contamination,
pesticide analysis, pesticide contamination, solid-phase extraction.
1 Introduction
In the world there is growing evidence of ground water contamination because of
the intensive application of fertilizers and pesticides. Nitrate levels have been
increasing in drinking water supplies in Europe, the United States, Canada,
Africa, the Middle East, Australia, and New Zealand. In 1985 the American
Water Works Association survey showed that 23% of primary drinking water
standard violations were due to excessive nitrate concentrations. A survey
conducted by the U.S. Environmental Protection Agency (US-EPA) in 1990
indicated that 1130 public and approximately 250 000 private domestic water
supply wells might have exceeded the maximum contamination level for nitrate.
The World Health Organization (WHO, 1972) found that 31.5 % of 2000 wells
surveyed in Canada had more than 20 mg/L NO3 -N [8].
Keywords
drinking water, maximum contamination level, nitrate contamination,
pesticide analysis, pesticide contamination, solid-phase extraction.
Related Book
Other papers in this volume
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