Some tap water samples were also contaminated with ammonia at levels that were 6-18 times higher than the allowed level, and arsenic levels that were two to three times higher than acceptable World Health Organization guidelines.
Arsenic levels were two to three times higher than acceptable according to the World Health Organization guidelines. Some tap water samples were also contaminated with ammonia at levels that were 6-18 times higher than the allowed level.
Some tap water samples were also contaminated with ammonia at levels that were 6-18 times higher than the allowed level. Arsenic levels were two to three times higher than acceptable according to the World Health Organization guidelines.
Some tap water samples were also contaminated with ammonia at levels that were 6-18 times higher than the allowed level. Arsenic levels were two to three times higher than acceptable according to the World Health Organization guidelines.