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Table 2.5 Example of scaling checklist with respect to thermal power plants at operation phase
Sl.
No. Parameter
Nature of impact
Scaling
(a) Transportation of coal
Respiratory and related diseases
expected due to loading, unloading and
transportation activities
−3
(b) Grinding coal
Respiratory and hearing-related diseases
expected due to grinding activities
−1
(c) Feeding coal to boilers
Respiratory and hearing-related diseases
expected due to grinding activities
−1
(d) Electricity transmission
Energy loss and high transition may lead
to heat island and accidents due to
shocks
−1
(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
−2
(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
−2
(g) Discharge of wastewater
Pollution of water bodies and soil may
lead to waterborne diseases due to
discharge of pollutants
−2
(h) Solid waste management
Activity may increase injury and other
health issues depending on nature of
solid waste
−2
(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
−4
(j)
Providing subsidised nutritious food
to workers
Health of employees would increase
+4
(k) Maintenance of green belt
Health of employees and nearby human
settlement will increase
+1
(l)
Extending hospital of thermal plants
to nearby villages towns
Health of nearby human settlement will
increase
+4
(m) Extending healthcare activity to
faraway settlements by mobile clinics
under corporate social responsibilities
Health of faraway human settlement will
increase
+4
(n) Distribution of free nutritious food to
nearby school children
Health of nearby school children will
increase
+4
Descriptors
+: Positive; −: Negative; 0: Nil impact; 1: Very low impact; 2: Low impact; 3: High impact; 4: Very
high impact
2.8 Overlays