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Document ID (ISN)105162
CIS number 06-656
ISSN - Serial title 0007-9952 - Cahiers de notes documentaires - Hygiène et sécurité du travail
Year 2005
Convention or series no. INRS ND 2237-201-05
Author(s) Gérardin F., Hecht G., Hubert-Pelle G., Subra I.
Title UV process: Chloroform and nitrogen trichloride level monitoring in indoor swimming pool waters
Original title Traitement UV: suivi de l'évolution des concentrations en chloroforme et en trichlorure d'azote dans les eaux de baignade d'un centre aquatique [in French]
Bibliographic information 4th Quarter 2005, No.201, p.19-30. Illus. 31 ref.
Internet access http://www.inrs.fr/INRS-PUB/inrs01.nsf/inrs01_search_view_view/9FCD3307BCB91167412570D8004C447A/$FILE/nd2237.pdf [in French]
Abstract Faced with high levels of supervisory staff exposure to nitrogen trichloride and high levels of combined chlorine in pool water, indoor swimming pool operators increasingly adopt additional water treatment systems based on UV irradiation. This technology results in the formation of undesired by-products such as chloroform (an IARC class 2B carcinogen). For eight weeks, INRS monitored chloroform and nitrogen trichloride concentrations in water from two pools equipped with low and medium pressure lamps respectively. This study revealed the significant contribution of UV irradiation to chloroform formation and to the possible increase of dissolved nitrogen trichloride.
Descriptors (primary) nitrogen trichloride; water treatment; swimming pools; ultraviolet radiation; chloroform
Descriptors (secondary) carcinogens; irradiation; sampling and analysis; exposure evaluation; limitation of exposure
Document type D - Periodical articles
Country / State or ProvinceFrance
Subject(s) Toxic and dangerous substances
Broad subject area(s) Chemical safety
Browse category(ies) Inorganic substances
Entertainment services and sports
Non-ionizing radiation
Halogenated hydrocarbons
Halogens and their inorganic compounds