4. description of the environment - Gujarat Pollution Control Board

Final Feasibility Report
Preparation of Feasibility– cum-Preliminary Design for 4/6 Laning
of Jetpur-Somnath section of NH 8D, Package No:
NHAI/DBFOII/DPR/02
VOLUME III:
ENVIRONMENTAL IMPACT ASSESSMENT
Table 4-11: Noise Quality Results
Noise Levels, dB(A)
Sl.
No.
Location
MoEF
Category
Day Time
(06:00-22:00 hrs.)
Night Time
(22:00-06:00 hrs.)
Overall
Leqmin. Leqmax. Leqmin. Leqmax. Leqmin. Leqmax.
JS1 Jetpur Bypass Industrial 37.1 75.1 34.0 68.6 34.0 75.1
JS2 Shree Jetalsar High School Commercial 40.5 77.2 33.4 67.6 33.4 77.2
JS3 Krishna Garden Hotel Commercial 44.7 78.5 36.8 71.9 36.8 78.5
JS4 Alpha Vidhya School Residential 43.2 73.2 36.8 73.2 36.8 73.2
JS5 Babyland School Commercial 43.2 72.3 36.1 63.2 36.1 72.3
JS6 Swaminarayan Gurukul Residential 39.1 70.2 30.4 76.3 30.4 76.3
JS7 Vanthili Junction Commecrial 40.5 87.0 33.4 70.8 33.4 87.0
JS8 Kanya Chatralay Residential 40.5 69.2 34.0 65.1 34.0 69.2
JS9 Nr. School in Manekwada Residnetial 34.0 65.8 33.2 57.2 33.2 65.8
JS10 Agatrai Village Commercial 40.3 72.9 37.6 66.4 37.6 72.9
JS11 Srijarka School Residential 40.5 69.2 34.0 65.1 34.0 69.2
JS12 Vinoba Vidhya Mandir Residential 34.8 74.8 34.2 54.0 34.2 74.8
JS13 Saraswati Vidhya Mandir Residential 37.2 68.6 34.9 58.5 34.9 68.6
JS14
T-Junction (Bhavnagar -
Veraval - Somnath)
Commercial 34.4 71.8 33.8 68.3 33.8 71.8
Leq Day Norms* for Residential Areas 55 45 -
Leq Norms* for Commercial Areas 65 55 -
Overall the Leq noise level range is 33.4 to 87.0 dB(A). During daytime, the noise level ranges
from 34-87 dB(A). During the night time, the Leq range is 30 to 76.3 dB(A). The higher noise
levels have been observed in commercial areas.
4.7 BIOLOGICAL ENVIRONMENT
4.7.1 Terrestrial Ecology
a) Forests
No reserve forests are identified within the direct influence area of the project corridor. Details of
the forests in project influence area i.e., at the district level are provided below.
The forest areas of Gujarat are unevenly distributed. The major concentration of forests is found
all along the eastern border of the state and the hilly portion of Saurashtra. The forests are found
mainly in the district Junagadh. Tropical Dry Deciduous Forests thrive in the region having the
rainfall between 600 mm to 1200 mm. These forests are found in the central part of the state in
parts of Saurashtra in the districts of Junagadh. Northern Tropical Thorn Forests occur in the
region with less than 600 mm rainfall. These forests are found in Rajkot and Junagadh districts.
These forests contain spare and stunted growth of species like Acacia and thorn bushes etc.
Littoral and Swamp Forest, Mangrove forest are found in the coastal creeks in the districts of
Junagadh. The main species found in these forests is Avicenia sp. Out of 207 subtypes of
forests, recorded by Champion and Seth, 31 subtypes, (14.7%) have been identified in the state.
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