Volatile organic compounds of the tap water in the Watarase, Tone and Edo River system

Kimihide Ohmichi, Masayoshi Ohmichi, Kazuhiko Machida

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

OBJECTIVES: The chlorination of river water in purification plants is known to produce carcinogens such as trihalomethanes (THMs). We studied the river system of the Watarase, Tone, and Edo Rivers in regard to the formation of THMs. This river system starts from the base of the Ashio copper mine and ends at Tokyo Bay. Along the rivers, there are 14 local municipalities in Gunma, Saitama, Ibaragi and Chiba Prefectures, as well as Tokyo. This area is the center of the Kanto plain and includes the main sources of water pollution from human activities. We also analyzed various chemicals in river water and tap water to clarify the status of the water environment, and we outline the problems of the water environment in the research area (Fig. 1). METHODS: Water samples were taken from 18 river sites and 42 water faucets at public facilities in 14 local municipalities. We analyzed samples for volatile organic compounds such as THMs, by gas chromatography mass spectrometry (GC-MS), and evaluations of chemical oxygen demand (COD) were made with reference to Japanese drinking water quality standards. RESULTS: Concentrations of THMs in the downstream tap water samples were higher than those in the samples from the upperstream. This tendency was similar to the COD of the river water samples, but no correlation between the concentration of THMs in tap water and the COD in tap water sources was found. In tap water of local government C, trichloroethylene was detected. CONCLUSIONS: The current findings suggest that the present water filtration plant procedures are not sufficient to remove some hazardous chemicals from the source water. Moreover, it was confirmed that the water filtration produced THMs. Also, trichloroethylene was detected from the water environment in the research area, suggesting that pollution of the water environment continues.

Original languageEnglish
Pages (from-to)45-50
Number of pages6
JournalNippon eiseigaku zasshi. Japanese journal of hygiene
Volume59
Issue number1
Publication statusPublished - 2004 Jan

Fingerprint

Volatile Organic Compounds
Rivers
Trihalomethanes
Water
Biological Oxygen Demand Analysis
Water Pollution
Trichloroethylene
Tokyo
Public Facilities
Hazardous Substances
Local Government
Water Purification
Halogenation
Water Quality
Research
Human Activities

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health

Cite this

Volatile organic compounds of the tap water in the Watarase, Tone and Edo River system. / Ohmichi, Kimihide; Ohmichi, Masayoshi; Machida, Kazuhiko.

In: Nippon eiseigaku zasshi. Japanese journal of hygiene, Vol. 59, No. 1, 01.2004, p. 45-50.

Research output: Contribution to journalArticle

Ohmichi, Kimihide ; Ohmichi, Masayoshi ; Machida, Kazuhiko. / Volatile organic compounds of the tap water in the Watarase, Tone and Edo River system. In: Nippon eiseigaku zasshi. Japanese journal of hygiene. 2004 ; Vol. 59, No. 1. pp. 45-50.
@article{52cb869d61444069ab19a9a636b51bbd,
title = "Volatile organic compounds of the tap water in the Watarase, Tone and Edo River system",
abstract = "OBJECTIVES: The chlorination of river water in purification plants is known to produce carcinogens such as trihalomethanes (THMs). We studied the river system of the Watarase, Tone, and Edo Rivers in regard to the formation of THMs. This river system starts from the base of the Ashio copper mine and ends at Tokyo Bay. Along the rivers, there are 14 local municipalities in Gunma, Saitama, Ibaragi and Chiba Prefectures, as well as Tokyo. This area is the center of the Kanto plain and includes the main sources of water pollution from human activities. We also analyzed various chemicals in river water and tap water to clarify the status of the water environment, and we outline the problems of the water environment in the research area (Fig. 1). METHODS: Water samples were taken from 18 river sites and 42 water faucets at public facilities in 14 local municipalities. We analyzed samples for volatile organic compounds such as THMs, by gas chromatography mass spectrometry (GC-MS), and evaluations of chemical oxygen demand (COD) were made with reference to Japanese drinking water quality standards. RESULTS: Concentrations of THMs in the downstream tap water samples were higher than those in the samples from the upperstream. This tendency was similar to the COD of the river water samples, but no correlation between the concentration of THMs in tap water and the COD in tap water sources was found. In tap water of local government C, trichloroethylene was detected. CONCLUSIONS: The current findings suggest that the present water filtration plant procedures are not sufficient to remove some hazardous chemicals from the source water. Moreover, it was confirmed that the water filtration produced THMs. Also, trichloroethylene was detected from the water environment in the research area, suggesting that pollution of the water environment continues.",
author = "Kimihide Ohmichi and Masayoshi Ohmichi and Kazuhiko Machida",
year = "2004",
month = "1",
language = "English",
volume = "59",
pages = "45--50",
journal = "Nihon eiseigaku zasshi. Japanese journal of hygiene",
issn = "0021-5082",
publisher = "Japanese Society for Hygiene",
number = "1",

}

TY - JOUR

T1 - Volatile organic compounds of the tap water in the Watarase, Tone and Edo River system

AU - Ohmichi, Kimihide

AU - Ohmichi, Masayoshi

AU - Machida, Kazuhiko

PY - 2004/1

Y1 - 2004/1

N2 - OBJECTIVES: The chlorination of river water in purification plants is known to produce carcinogens such as trihalomethanes (THMs). We studied the river system of the Watarase, Tone, and Edo Rivers in regard to the formation of THMs. This river system starts from the base of the Ashio copper mine and ends at Tokyo Bay. Along the rivers, there are 14 local municipalities in Gunma, Saitama, Ibaragi and Chiba Prefectures, as well as Tokyo. This area is the center of the Kanto plain and includes the main sources of water pollution from human activities. We also analyzed various chemicals in river water and tap water to clarify the status of the water environment, and we outline the problems of the water environment in the research area (Fig. 1). METHODS: Water samples were taken from 18 river sites and 42 water faucets at public facilities in 14 local municipalities. We analyzed samples for volatile organic compounds such as THMs, by gas chromatography mass spectrometry (GC-MS), and evaluations of chemical oxygen demand (COD) were made with reference to Japanese drinking water quality standards. RESULTS: Concentrations of THMs in the downstream tap water samples were higher than those in the samples from the upperstream. This tendency was similar to the COD of the river water samples, but no correlation between the concentration of THMs in tap water and the COD in tap water sources was found. In tap water of local government C, trichloroethylene was detected. CONCLUSIONS: The current findings suggest that the present water filtration plant procedures are not sufficient to remove some hazardous chemicals from the source water. Moreover, it was confirmed that the water filtration produced THMs. Also, trichloroethylene was detected from the water environment in the research area, suggesting that pollution of the water environment continues.

AB - OBJECTIVES: The chlorination of river water in purification plants is known to produce carcinogens such as trihalomethanes (THMs). We studied the river system of the Watarase, Tone, and Edo Rivers in regard to the formation of THMs. This river system starts from the base of the Ashio copper mine and ends at Tokyo Bay. Along the rivers, there are 14 local municipalities in Gunma, Saitama, Ibaragi and Chiba Prefectures, as well as Tokyo. This area is the center of the Kanto plain and includes the main sources of water pollution from human activities. We also analyzed various chemicals in river water and tap water to clarify the status of the water environment, and we outline the problems of the water environment in the research area (Fig. 1). METHODS: Water samples were taken from 18 river sites and 42 water faucets at public facilities in 14 local municipalities. We analyzed samples for volatile organic compounds such as THMs, by gas chromatography mass spectrometry (GC-MS), and evaluations of chemical oxygen demand (COD) were made with reference to Japanese drinking water quality standards. RESULTS: Concentrations of THMs in the downstream tap water samples were higher than those in the samples from the upperstream. This tendency was similar to the COD of the river water samples, but no correlation between the concentration of THMs in tap water and the COD in tap water sources was found. In tap water of local government C, trichloroethylene was detected. CONCLUSIONS: The current findings suggest that the present water filtration plant procedures are not sufficient to remove some hazardous chemicals from the source water. Moreover, it was confirmed that the water filtration produced THMs. Also, trichloroethylene was detected from the water environment in the research area, suggesting that pollution of the water environment continues.

UR - http://www.scopus.com/inward/record.url?scp=2142711184&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=2142711184&partnerID=8YFLogxK

M3 - Article

C2 - 15007904

AN - SCOPUS:2142711184

VL - 59

SP - 45

EP - 50

JO - Nihon eiseigaku zasshi. Japanese journal of hygiene

JF - Nihon eiseigaku zasshi. Japanese journal of hygiene

SN - 0021-5082

IS - 1

ER -