chapter - 1 introduction - Meghalaya State Pollution Control Board

Hills Cement Co. Limited.
Ecology Existing Flora and Fauna Through field visit during
the study period and
substantiated through
secondary sources.
Noise Levels Noise levels in dB Observations for 24 hours
per location.
Soil
Characteristics
Land Use
Socioeconomic
aspects
Parameters related to
agricultural and afforestation
potential
Trend of land use change for
different categories
Socio-economic
characteristics,
labour force characteristics,
population statistics and
existing amenities in the study
area.
Ambient air quality standards*
Once during the season.
Data from various
Government agencies
(Census Handbooks,
2001).
Parameters
(24 hrs sampling) Industrial
areas
Concentration in µg/m 3
Residential &
rural areas
Sensitive areas
Suspended
Particulate Matter
(SPM)
Respirable
Particulate Matter
(RPM)
Sulphur Dioxide
(SO2)
Oxides of Nitrogen
(NOx)
Carbon Monoxide
(CO )
Lead
(Pb)
500 200 100
150 100 75
120 80 30
120 80 30
4ppm 2ppm 1ppm
1.5 1.0 0.75
*Source: CPCB Publications ambient air quality monitoring
The data generation for ambient air quality status within 10 km radius of the
proposed site has been compiled.
To establish the ambient air quality, air sampling and measurements were
conducted. Air sampling stations were established at – locations around the
proposed site to assess the background air pollution levels. The ambient air
sampling was carried out at following locations:
Pollution Control Consultants (India) Pvt. Ltd. 49