Water pollution laundry products

Volatile Organic Compounds (VOCs) constitute a very important class of water pollutants because of their persistence in addition, many of them are suspected of being carcinogenic. There are about 60 VOCs, including benzene, toluene, ethylbenzene, and xylenes ( BTEX compounds ), halomethanes, and haloethanes. The presence of some of them in water is due to anthropic activities, for example, the use of chlorinated solvents in industries and laundries, and the formation of halomethanes as by-products of water disinfectants. With respect to Italian law DL 31/01, the maximum allowable concentration (threshold) for the sum of trichloroethylene and tetrachloroethylene concentrations in drinking water is 10 ppb, whereas the minimum account for the sum of a set of four halogenated compounds, namely chloroform, bromoform, bromodichloromethane, and chlorodibromomethane must be as low as possible and must not exceed 30 ppb. Note that 30 ppb is equivalent to 30 Tg L-i. 

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