A well has 2.0 mg/L of zinc, 2.5 mg/L formaldehyde and 70 ug/L of chloroform. Would there be any concern about carcinogenic health effects of using this water for drinking purposes? Solution Any substance with an ability to damage the genome or disruption of cellular metabolic processes, radionuclide and is an agent directly involved in causing cancer is termed as carcinogen substance. This may be due to the substances in the substance such as drinking water with minerals harmful beyond defined limits. In this problem, Zinc = 2.0 mg/L; Formaldehyde = 2.50 mg/l; and Chloroform 70 ug/L. Formaldehyde : Formaldehyde is a naturally-occurring organic compound with the formula CH2O (H-CHO), and is also known by its systematic name methanal. Reactive aldehydes such as formaldehyde is a Group 1 Carcinogenic substance for humans and thus is a hazard. Water solution of formaldehyde is very corrosive and its ingestion can cause severe injury to the upper gastrointestinal tract. The United States Environmental Protection Agency (EPA) allows no more than 0.016 ppm formaldehyde in the air. Since 2.5 mg/l is 2.50 ppm , hence this amount shall be highly prone as carcinogen substance. Zinc : The pollution limit for Zinc in drinking water is 5.0 mg/l. Hence from zinc considerations, this water sample is not contaminated or hazardous and there is no health effect issues considering carcinogenic aspects. Chloroform : Chloroform is an organic compound with formula CHCl3. It is a colorless, sweet-smelling, dense liquid. Chloroform is not a carcinogen substance but reasonably anticipated to be human carcinogens. There is no health effect issues considering carcinogenic aspects. ..

1. A well has 2.0 mg/L of zinc, 2.5 mg/L formaldehyde and 70 ug/L of chloroform. Would there be
any concern about carcinogenic health effects of using this water for drinking purposes?
Solution
Any substance with an ability to damage the genome or disruption of cellular metabolic
processes, radionuclide and is an agent directly involved in causing cancer is termed as
carcinogen substance. This may be due to the substances in the substance such as drinking water
with minerals harmful beyond defined limits.
In this problem, Zinc = 2.0 mg/L; Formaldehyde = 2.50 mg/l; and Chloroform 70 ug/L.
Formaldehyde :
Formaldehyde is a naturally-occurring organic compound with the formula CH2O (H-CHO), and
is also known by its systematic name methanal.
Reactive aldehydes such as formaldehyde is a Group 1 Carcinogenic substance for humans and
thus is a hazard. Water solution of formaldehyde is very corrosive and its ingestion can cause
severe injury to the upper gastrointestinal tract. The United States Environmental Protection
Agency (EPA) allows no more than 0.016 ppm formaldehyde in the air. Since 2.5 mg/l is 2.50
ppm , hence this amount shall be highly prone as carcinogen substance.
Zinc :
The pollution limit for Zinc in drinking water is 5.0 mg/l. Hence from zinc considerations, this
water sample is not contaminated or hazardous and there is no health effect issues considering
carcinogenic aspects.
Chloroform :
Chloroform is an organic compound with formula CHCl3. It is a colorless, sweet-smelling, dense
liquid. Chloroform is not a carcinogen substance but reasonably anticipated to be human
carcinogens. There is no health effect issues considering carcinogenic aspects.
.