Читать книгу Selenium Contamination in Water - Группа авторов - Страница 39

The permissible limit of Se in the drinking water was fixed by different countries based on the dietary intake through food and water. The permissible limit for drinking water is 10 times more than that for surface water as aquatic animals require less Se than mammals (Barron et al. 2009). World Health Organization (WHO) has set the standard for drinking water at 40 μg/l (WHO 2012). The permissible value set by the United States Environment Protection Agency (USEPA) is 50 μg/l (EPA 2020). Different countries have set their standards based on the availability of different factors; for example, the Bureau of Indian Standard has fixed the permissible limit to 10 μg/l (BIS 2012). The water quality standards for drinking water of different countries are tabulated in Table 3.1.