28-09-2012, 12:33 PM
AUTOMOBILE POLLUTION CONTROL
AUTOMOBILE POLLUTION.pdf (Size: 210.53 KB / Downloads: 146)
Growing population, phenomenal rise in the
number of vehicles and crowded traffic
intersections are the symptoms that
characterise the present predicament of the
increase in vehicular pollution. Vehicles emit
exhaust chemicals, such as carbon monoxide,
nitrogen dioxide, nitrogen monoxide, sulphur
dioxide and suspended particulate matter.
Other constituents of vehicular exhaust include
benzene, toluene, xylene, aldehyde etc., which
have systemic toxicity on human beings. Few
specific carcinogens are found to be typical of
diesel exahust.
In order to combat vehicular pollution, the
various steps that were adopted by the West
Bengal Pollution Control Board (WBPCB)
during the year 2005-2006 are given below.
Upgraded AETCs in West Bengal
In association with the State Department of
Transport, the West Bengal Pollution Control
Board has facilitated the setting up of
computerised and upgraded Automobile
Emission Testing Centres (AETCs) and
Pollution-under-Control (PUC) centres in
West Bengal. The AETCs have upgraded their
testing facilities with opacimeters, gas analysers,
web-camera, compatible software and
provisions for networking with the AETCs
and the Regional Transport Authorities
(RTAs). Each AETC has one set of opacity
meter (for smoke density testing) with engine
revolution per minute (RPM) sensor for diesel
engine, engine oil temperature sensor,
computer, web-camera, software (for measured
data transfer) and colour printer. For Petrol/
LPG/CNG (Compressed Natural Gas)
engines, four or five gases analysers with
facility for testing exhaust gases like CO, CO2,
O2 and HC are being installed at the AETC
premises. The emission standards for the inuse
vehicles under Sub-Rule 2 of Rule 115 of
the Central Motor Vehicles Rules, 1989 has
been amended vide GSR 111 (E) dated 10-02-
2004.