Air Pollution
Air Pollution is the introduction of Chemicals, Particulates or other Harmful materials into atmosphere causes/damage to living organism/Built Organism. Air pollutants are added in the atmosphere from variety of sources that change the composition of atmosphere and affect the biotic environment. The concentration of air pollutants depend not only on the quantities that are emitted from air pollution sources but also on the ability of the atmosphere to either absorb or disperse these emissions. The sources of air pollutants include vehicles, industries, domestic sources and natural sources. Because of the presence of high amount of air pollutants in the ambient air, the health of the population an
property
is getting adversely affected. In order to arrest the
deterioration in air quality, Govt. of India has enacted Air
(Prevention and Control of Pollution) Act in 1981. The
responsibility has been further emphasized under Environment
(Protection) Act, 1986. Therefore, Central Pollution Control
Board had started National Ambient Air Quality Monitoring (NAAQM)
Network during 1984 – 85 at national level. The program was later
renamed as National Air Quality Monitoring Program (NAMP).
Ambient Air Quality Monitoring
Ambient air quality monitoring is required to determine the existing quality of air, evaluation of the effectiveness of control program. National Air Quality Monitoring Program is described in this chapter along with details on pollutants measured and their frequency. Guidelines for monitoring are made for carrying out ambient air quality monitoring under NAMP and description of the program is essential as the monitoring is carried out
To meet the objectives of NAMP.
Various Equipment are used to find amount of Air pollution done by particular source called ‘’Air Monitoring Equipment.’’
Evaluation of Ambient Air for determination of community air Quality as
related to local health, Social & Environmental
Effects.
Determination of suspended particulate matter as small as one micron size & any four gaseous contaminants at a time.
Indoor air quality Parameters
Under
N.A.M.P., 12 air pollutants viz., Sulphur Dioxide (SO2), Oxides of
Nitrogen as NO2 and Particulate Matter (PM10) and Particulate Matter
(PM2.5), Ozone (O3), Lead (Pb), Carbon Monoxide (CO), Ammonia (Nh3),
Benzene (C6H6), Benzo-Pyrene (BaP), Arsenic (As), Nikhel (Ni) have been
identified for regular monitoring at required the locations/ Industrial
unit.
As per CPCB Notification.
Ambient Air Quality Standards
| Parameters | Unit | Limit |
|---|---|---|
| Sulphur Dioxide (SO2) | mg/M3 | = 80 |
| Oxides of Nitrogen | mg/M3 | = 80 |
| Particulate Matter PM10 | mg/M3 | = 100 |
| Particulate Matter PM2.5 | mg/M3 | = 60 |
| Ozone (O3) | mg/M3 | = 180 |
| Lead (Pb) | mg/M3 | = 1.0 |
| Carbon Monoxide (CO) | mg/M3 | = 04 |
| Ammonia (NH3) | mg/M3 | = 400 |
| Benzene (C6H6) | mg/M3 | = 05 |
| Benzo(a)Pyrene (BaP) | mg/M3 | = 01 |
| Arsenic (As) | mg/M3 | = 06 |
| Nickel (Ni) | mg/M3 | = 20 |
Sampling Duration and Frequency
The
period and frequency of sampling should be such that statistically
reliable averages can be obtained with the data i.e. 8 Hrs or 24 Hrs.
National Ambient Air Quality Standards states that it should be 8 Hrs
monitoring or 24 Hrs as per requirement. Particulate matter levels are
lower during the monsoon months due to removal by wet deposition. Air
pollutants such
as CO levels
are higher during winter months due to lower mixing heights resulting in
less volume of troposphere available for mixing and hence higher
concentrations. Thus measurements should be conducted in all the seasons
so that in annual average all the seasons are represented equally. In
general minimum 20% of the reading should be taken in each season.
High Volume Air Sampler
High Volume Air Sampler consist of filter holding assembly, High capacity blower, U-tube Manometer, Rotameter, impingers housed in detachable fibre case, inlet filters, voltage stabilizer & Timer.
Why us
We have association with highly qualified and experienced staff to carry out air quality monitoring related tasks. Also we have periodically calibrated instruments as per Pollution control board guidelines. We also offer services Soil Analysis, Water Analysis and Ambient Noise level Monitoring.
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