A few residents in your locality, for business gains, have established small-scale
industrial/ commercial activities such as pathological labs and fabric dyeing
centres without obtaining 'No objection certificates' from municipal authorities.
Would you support these activities? Give any three reasons in support of your answer.
No, I would not support these activities.
(i) Small scale industrial/ commercial activities are a source of particulate and gaseous
air pollutants which can cause breathing and respiratory symptoms, irritation, inflammation
and damage to the lungs and even premature death.
(ii) They discharge their waste product in water causing water pullution. The waste may
contain heavy metals such as mercury, cadmium, copper, lead etc. and a variety of organic
compounds. They can undergo biological magnification in the aquatic food chain. These
substances accumulate in the body of organisms and cannot be metabolised or excreted.
(iii) Sewage from pathological labs if added in water is a source of pathogenic microrganisms
which may cause serious diseases such as dysentry, typhoid, jaundice, cholera, etc.