WebThe pool chlorine hypothesis is the hypothesis that long-term attendance at indoor chlorinated swimming pools by children up to the age of about 6–7 years is a major factor in the rise of asthma in rich countries since the late twentieth century. ... Effects of nitrogen trichloride (trichloramine) on the human lung WebA number of outbreaks involving the inhalation of aerosolized chlorine by-products at improperly chlorinated pool facilities or accidental release of chlorine gas have been documented. 30-33 In addition, there are also reports of occupational asthma in pool workers as a result of aerosolized chlorine by-products, notably nitrogen trichloride …
Assessment of Occupational and Public Exposure to Trichloramine …
WebIn 4 steps, the trichloramine level in the air is measured: Air sampling (WITHOUT PUMP and WITHOUT CHEMICAL REAGENTS) to fix the trichloramine on a tablet. Use of the tablet in a solution to release the trichloramine particles. Measurement of trichloramine in the air with the portable analyzer. Direct reading of the rate in mg/m3. WebThe observed daily variations in trichloramine and trichloromethane concentrations suggest that the common practice of collecting a single 2-hr air sample does not represent daily pool trichloramine and trichloromethane contamination levels and, consequently, does not represent the true exposure and health risks for workers that are present for a full 8-hr shift. heliosar sl
Respiratory and Ocular Symptoms Among Employees of a Hotel …
WebTrichloramine is a strong mucous membrane irritant (8) and has been associated with eye and respiratory tract irritation and asthma in swimmers and pool attendants (7). One study found that nonswimmers did not report symptoms until the trichloramine concentration reached 0.5 mg/m 3 , and all nonswimmers reported symptoms at 0.7 mg/m 3 ( 1 ). WebThe concentration of trichloramine in the atmosphere of indoor swimming pool is not regulated. However, the French Institute of Occupational Health and Safety (INRS) has recommended a comfort limit value of 0.5 mg NCl 3 m-3 [9]. The concentration of combined chlorine in water must not exceed 0.6 mg Cl 2 L-1 in French public pools [1]. WebTrichloramine (NCl 3) is a toxic, explosive and smelly chloramine created by the reaction of nitrogen compounds in the water with hypochlorous acid. ... To prevent pool chemical injuries, the CDC says disinfection products must be kept below 35°C and in manufacturer-recommended conditions ... heliosart00