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1. Risky area due to transmission lines would be in the orientation of transmission
line.
2. Risk due to transportation of coal will be beside roads/railways/ports.
3. Air pollution risk will be in the area where nigh air pollutant concentrations are
predicted by a mathematical model.
4. Waterborne diseases can be marked on map using water quality modelling and
people who get water from downstream of river.
The overlay methods are useful in screening alternative project sites. The impact
would be different at different sites based on wind speed, wind direction, socioeconomic set-up of the area and hereditary diseases of the people in the area.
Table 2.4 Example of descriptive checklist with respect to thermal power plant at operation phase
Sl.
No. Parameter
Nature of impact
(a) Transportation of coal
Respiratory and related diseases expected due to
loading, unloading and transportation activities
(b) Grinding coal
Respiratory and hearing-related diseases expected due to
grinding activities
(c) Feeding coal to boilers
Respiratory and hearing-related diseases expected due to
grinding activities
(d) Electricity transmission
Energy loss and high transition may lead to heat
highland and accidents due to shocks
(e) Operation of cooling towers
Increase in heat and pollution of water bodies may lead
to waterborne diseases due to discharge of trace
additives to water
(f) Withdrawal of water from water
source
Water shortage from water source may lead to health
impact of citizens who depend on this water source
(g) Discharge of waste water
Pollution of water bodies and soil may lead to
waterborne diseases due to discharge of pollutants
(h) Solid waste management
Activity may increase injury and other health issues
depending on nature of solid waste (municipal, e-waste,
silicon waste, slaughter waste, garden trimming,
hazardous waste, construction and demolition waste,
plastic waste, biomedical waste, etc.)
(i) Ash management
Fly ash may result in pollution of air and water. Ash in
ash-pond and bottom ash may led to water pollution
(j) Providing subsidised nutritious
food to workers
Health of employees would increase
(k) Maintenance of green belt
Health of employees and nearby human settlement will
increase
(l) Extending hospital of thermal
plants to nearby villages towns
Health of nearby human settlement will increase
(m) Extending healthcare activity to
faraway settlements by mobile
clinics under corporate social
responsibilities
Health of faraway human settlement will increase
(n) Distribution of free nutritious
food to nearby school children
Health of nearby school children will increase
2 Health Impact Assessment (HIA)
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