Virtually all water pollutants are hazardous to humans as well as lesser species;
sodium is implicated in cardiovascular disease, nitrates in blood disorders.
Mercury and lead can cause nervous disorders.
Some contaminants are carcinogens.
DDT is toxic to humans and can alter chromosomes.
Along many shores, shellfish can no longer betaken because of contamination by DDT, sewage, or industrial wastes.
0 comments:
Post a Comment