2) State ‘True’ or ‘False’: (1 x 7 = 7)
a) Chemical factories do not produce waste.
b) Silicosis is a skin disease.
c) Soot is an example of particulate matter.
d) Open dumping of waste is one of the stages of waste management.
e) Recycling was practised even in the distant past.
f) An NGO is an organisation run by the government.
g) Groundwater gets polluted due to the open dumping of wastes.
Answers
Answer:
A mixture of gases and obnoxious odours are major components of landfill emission. A dispersion modelling on air pollutants and odour emissions anticipated from a proposed Integrated Waste Management Facility was conducted considering five operating scenarios. Impacts of the predicted ground level concentrations of air pollutants (including carbon monoxide, CO; oxides of nitrogen, NOX; sulphur dioxide, SO2; particulate matter, PM and hydrocarbons, HC) and odour on ambient air quality were investigated using the 10-min 1 OU/m3 odour limit, CH4 Lower Explosive Limit (LEL) and the daily limits of CO, NOx, SO2, PM and HC. The anticipated maximum ground level concentration of emitted odour and CH4 are 0.0040 OU/m3 and 0.0349 ppm, respectively. Simultaneous operations of all the major components of the facility will generate the daily maximum concentrations of 7.34, 2.60, 7.31, 29.72 and 0.42 μg/m3, for CO, NOX, SO2, PM and HC, respectively. Generally, the facility impacts on ambient air quality will be within the acceptable limit.
Keywords: Dispersion modeling, Emission, Gaseous pollutants, Landfill, Waste management
Explanation:
Answer:
1) False
Explanation:
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