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Envirotech Instruments: Leader in the Indian Market

Quality Standards

National Ambient Air Quality Standards

S. No.
Pollutant
Time Weighted
Average
Concentration in Ambient Air
Industrial,
Residential, Rural
and Other Area
Ecologically
Sensitive Area
(notified by
Central
Government)
Methods of Measurement
1
Sulphur Dioxide
(SO2), pg/m2
Annual*
24 hours*
50
80
20
80
  • Improved West and Geeke
  • Ultraviolet fluorescence
2
Nitrogen Dioxide
(NO2), pg/m3
Annual*
24 hours*
40
80
30
80
  • Modified Jeeob &
    Hoehbeiser ON a-
    Arsenite)
  • Chemiluminercence
3
Particulate Matter
(size less chan 10um)
or PM10 pg/m3
Annual*
24 hours*
60
100
60
100
  • Gravirmetric
  • TOEM
  • Beta attenuation
4
Particulate Matter
(size less than 2.5um)
or PM2.5 um/m3
Annual*
24 hours*
40
60
40
60
  • UV photometric
  • Chemilminescence
  • Chemical Method
5
Ozone (O2)
pg/m2
Annual*
24 hours*
100
180
100
180
  • AAS/ICP Method after
    sampling on EPM 2000
    or equivalent filter paper
  • ED-XRF using PTFE
    filter
6
Lead (Pb)
p.g./m
Annual*
24 hours*
0.50
1.0
0.50
1.0
  • Non Dispersive Infra
    Red (NDIR)
    spectroscopy
7
Carbon
Monoxide (CO)
m.g./m2
Annual*
24 hours*
03
04
02
04
  • Chemiluminescence
  • Indophenol blue method
8
Ammonia (NH3) ug/m3
Annual*
24 hours*
100
400
100
400
  • Chemiluminescence
  • Indophenol blue method
The Gazette of India : Extraordinary
9
Benzene (C6H6)
ug/m2
Annual*
05
05
  • Gas chromalography
    based continuous
    analyzer
  • Adsorption and
    Desorption followed by
    GC analysis
10
Senzol (o) Pyrene
(BaP) - particulate
phase only, ng/m3
Annual* 01
01
  • Solvent extraction
    followed by HPLC/GC
    analysis
11
Arsenic (A3),
ng/m3
Annual* 06
06
  • AAS/ICP Method after
    sampling on EPM 2000
    or equivalent filter paper
12
Nickel (Ni), ng/m3
Annual* 20
20
  • AAS/ICP Method after
    sampling on EPM 2000
    or equivalent filter paper

After-Sale Service, Support and Spares

All Envirotech products carry a one year warranty for trouble-free operation. Envirotech maintains its equipment through the central office at Delhi and regional centers located in different parts of the country. In most cases, the regional representatives are technically competent professionals.

Envirotech Proves After Sales Services Support
ENVIROTECH INSTRUMENTS
Leader in the Indian Market
offers
Appropriate Instruments for complying with
latest Ambient Air Quality Standards
notified on 18th Nov. 2009.
For routine & compliance monitoring
(by Industries & Consultants)
For Accurate & Precise monitoring
for developing scientific iunderstanding
(by Regulatory Agencies & Research, Academic Institutions &
Consultants doing EIA's.)
1. For manual measurement of particulate
matter less than 10 micron, Lead,
Arsenic, Nickel & Benzopyrene

Respirable Dust Samplers
APM 460 BL/NL
2. For manual measurement of gaseous
pollutants like Ammonia, SO2, NOx & Ozone
APM411TE
A gaseous sampling attachment
with Resirable Dust Sampler
3. For manual measurement of PM 2.5
PM 2.5 Sampler
APM 550

4. For manual measurement of
CO & Benzene

Organic VApour Sampler
APM 856
For manual measurement of particulate matter PM 10

PM 10 Sampler
APM 541
For manual measurement of Particulate Matter PM 2.5
PM 2.5 Sampler
APM 550 MFC
An independent gas sampler for measurement of
Ammonia, SO2, NOx & Ozone
Gaseous Pollutants Sampler
APM 433
For manual measurement of Benzene & VOC's
Organic Vapour Sampler
APM 856
For manual measurement of Lead, Arsenic,
Nickel & Benzopyrene collected on particulates
over a filter paper
Respirable Dust
Samplers APM 460
BL/NL/DXNL
(High flow rate of
sampler ensure
sufficient quantity of
material on filter paper)
Also available online analyers & fully automated CAAQMS for measurement of PM10, PM2.5, CO, Benzene, Ozone, Ammonia, SO2, NOx,

All instruments are supported with Hands on Trainingand and prompt after sales services.


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