Distribution of Bromine/Chlorine-Containing Disinfection By-Products in Tap Water from Different Water Sources in the Hyogo Prefecture

• Kawamoto Tatsuhiko

  Water Environment Division, Hyogo Prefectural Institute of Public Health and Environmental Sciences

• Makihata Nobuko

  Water Environment Division, Hyogo Prefectural Institute of Public Health and Environmental Sciences

抄録

An investigation was conducted to determine both the distribution and the concentration of 24 types of disinfection by-products (DBPs) formed by the chlorination of tap water during the water treatment process. The 24 DBPs consisted of 9 haloacetic acids (HAAs), 9 haloacetonitriles (HACNs), 4 trihalomethanes (THMs), chloral hydrate (CH) and formaldehyde (FA). The samples were collected from 8 different water sources in the Hyogo Prefecture. As a result of the field study, which was conducted 4 times in one year, 23 of the DBPs mentioned above [all except for tribromoacetonitrile (TBACN)] were detected in tap water. When the 24 DBPs are classified into their 5 main categories, it has previously been thought that THMs would form the highest concentration group. However, according to the results obtained in this study, the average values of the HAAs showed the highest at the various sampling points, followed by the THMs, HACNs, chloral hydrate and formaldehyde. The composition ratios of the bromine/chlorine-containing DBPs in tap water from different water sources were compared. The ratio of chlorine-containing DBPs in tap water derived from surface water was higher than that in tap water derived from ground water. On the other hand, the ratio of the bromine-containing DBPs in tap water extracted from ground water was higher than that of tap water extracted from surface water. This tendency was observed equally for HAAs, HACNs and THMs. This phenomena was also supported by numerical results obtained using the bromine incorporation factor [n(Br)]. It was newly revealed that n(Br) is applicable to HAAs and HACNs in addition to THMs. <br>

収録刊行物

• ＪＯＵＲＮＡＬ　ＯＦ　ＨＥＡＬＴＨ　ＳＣＩＥＮＣＥ

  ＪＯＵＲＮＡＬ　ＯＦ　ＨＥＡＬＴＨ　ＳＣＩＥＮＣＥ 50 (3), 235-247, 2004

  公益社団法人 日本薬学会

キーワード

• disinfection by-products
• haloacetic acids
• trihalomethanes
• haloacetonitriles
• bromine incorporation factor
• bromide ion

詳細情報

• CRID: 1390282679474830976
• NII論文ID: 110003609158
• NII書誌ID: AA11316464
• DOI: 10.1248/jhs.50.235
• ISSN: 13475207
• ISSN: 13449702
• NDL書誌ID: 6947471
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6947471
• Web Site: http://www.jstage.jst.go.jp/article/jhs/50/3/50_3_235/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2005287150
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可