Ambient Air quality Monitoring Guidlines. - Maharashtra Pollution ...

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8.2 Air Inlet Filter - A Teflon filter capable of removing all particulate matter greater than 5 µm in diameter. 8.3 Recorder - Capable of full scale display of voltages from the instrument DC amplifier. These are commonly found in full scale ranges of 10 mV to 1V. 8.4 Calibration Apparatus 8.4.5 Ultravoilet Photometer, (UV Photometer), commercially available. The UV photometers are primary standards for determinations of ozone in air. The units differ from the ozone photometric analyzer in Section 8.1 in that the UV photometers do not contain an ozone scrubber, and are designed to make pressure and temperature corrections for the measured ozone to standard conditions (25 o C and 101.3kPa). 8.4.6 Ozone Transfer Standard - An ozone analyzer that has been precalibrated against a UV photometer (13). 8.4.7 Ozone Source and Dilution System - The ozone source consists of a quartz tube into which purified air is introduced and then irradiated with a stable low pressure mercury lamp. The level of irradiation is controlled by an adjustable metal sleeve that fits around the lamp (14). At a fixed level of irradiation and at a constant temperature and humidity, ozone is produced at a uniform rate. By careful control of the flow of air through the quartz tube, and/or adjustment of the irradiation level, test atmospheres can be generated that contain stable but variable concentrations of ozone. An output manifold with a vent is attached to the ozonator (Figure-3). Ozone outputs must be available to cover the complete analyzer operating range, typically 0.00 to 1.00 ppm. The dilution system should have a totla flow capability of a least 5 l/min. Any alternative system capable of these outputs is acceptable (15). 8.4.8 Spectrophotometric determination of the calibration ozone streams may be performed. This manual method is based on the formation of free iodine in a neutral buffered potassium iodide solution upon exposure, and required the following equipment : 8.4.8.1 Air metering device 8.4.8.2 Midget impingers 8.4.8.3 Air pump 8.4.8.4 Spectrophotometer 150
CLEAN AIR SUPPLY FIG: 3 OZONE SOURCE AND DILUTION SYSTEM. 151 FLOW CONTROLLER FLOW CONTROLLER OZONE GENERATOR OUTPUT MANIFOLD SAMPLING PORTS AND VENT
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1.0 INTRODUCTION Air pollutants are
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The Central Pollution Control Board
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S.No. Problem Area Type of Industry
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(viii) High population exodus to th
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a) Seasonal Variation in Carbon Mon
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Concentration (µg/m 3 ) 2.2.3 Long
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3.2 National Air Monitoring Program
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Number of Monitoring Stations 40 35
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4.0 GUIDELINES FOR MONITORING For s
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The variability of pollutant concen
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areas, traffic intersections etc. O
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Station Type Description Type C Res
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available then monitoring of specif
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manpower and needs to be calibrated
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averaging should be done and plotte
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necessary to readjust the position
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5.0 QUALITY ASSURANCE AND QUALITY C
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(a) Inter Laboratory Proficiency Te
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2. Infrastructure for conducting In
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ZERO GAS VALVE PRESSURE REGULATOR (
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is to assess its ability to perform
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The mixing ratio of O3 (ppb) must n
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(vi) Lack of Dedicated Manpower If
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Site staff must be trained so that
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NATIONAL AMBIENT AIR QUALITY MONITO
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Delhi - 110 032 e-mail : cpcb@alpha
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FOREWORD Under the Air (Prevention
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Table No. References 161 LIST OF TA
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3.0 INTRODUCTION Air pollutants are
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The Central Pollution Control Board
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S.No. Problem Area Type of Industry
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(viii) High population exodus to th
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Monthly average of CO measured at B
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Concentration (µg/m 3 ) 2.2.3 Long
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3.2 National Air Monitoring Program
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Number of Monitoring Stations 40 35
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4.0 GUIDELINES FOR MONITORING For s
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The data requirements, which are re
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their levels and determine trends.
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Station Type Description traffic vo
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Criteria for SO2 Measurements Sourc
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calibration parameters change. Meas
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The following must be followed for
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changed in inclement weather. Set t
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5.0 QUALITY ASSURANCE AND QUALITY C
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(a) Inter Laboratory Proficiency Te
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The primary requirement for conduct
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ZERO GAS VALVE PRESSURE REGULATOR (
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is to assess its ability to perform
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The mixing ratio of O3 (ppb) must n
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(xiii) Lack of Dedicated Manpower I
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laboratory staff must be trained so
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1. AIR SAMPLING - GASEOUS 1.0 TITLE
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52 Fig. 1 Sampling Train
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54 Fig. 4 Critical Orifice Device
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the pollutant and accordingly selec
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contracts with change in humidity.
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and temperature has been set down i
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The impulse frequency emitted is pr
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CIRCUIT DIAGRAM - 1 64
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FIG. 1 (a) CIRCUIT DIAGRAM 66
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3. DETERMINATION OF SUSPENDED PARTI
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measurement precision dominates at
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6.4.4 Equilibration Rack - This rac
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Receive Filters, inspect (light tab
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of the face-plate. Look underneath
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Atmosphere". Federal Register, 52 F
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5.0 INTERFERENCES 5.1 Passive Depos
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6.4.4 Numbering Machine - Though fi
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chain-of-the custody log-book and o
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5. DETERMINATION OF SULPHUR DIOXIDE
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88 FIG. 1.0 SO2 SAMPLING TRAIN
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The wavelength calibration of the i
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(ii) The absorbance of the reagent
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pipe cleaner after use. If, the tem
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(A - Ao) (10 3 ) (B) C = ----------
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Then the air sample flows into a re
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integral part of the apparatus, or
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6.4 Pressure Regulator The output s
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FIG. 2 SCHEMATIC DIAGRAM OF A CALIB
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7. CONTINUOUS MEASUREMENT OF CARBON
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6.0 APPARATUS 6.1 NDIR Analyser - f
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BLOWER SAMPLE INLET PORT FOUR WAY V
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Maintain the same sample cell flow
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14.0 CALIBRATION PROCEDURE 14.1 Ana
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connected to the output manifold, t
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FIG. 3 MULTIPLE CYLINDER CALIBRATIO
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(Nondispersive Infrared Spectrometr
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5.0 INTERFERENCES 5.1 Nitric oxide
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7.1.6 Air Pump - Capable of maintai
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9.1.3.2 Solution B - Pipet 25 ml of
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9.4.7 A randomly selected 5-10% of
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9. CONTINUOUS MEASUREMENT OF OXIDES
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8.0 APPARATUS 8.1 Chemiluminescene
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SAMPLE INLET PUMP AIR DRYER OZONE G
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FIG. 3 CALIBRATION SYSTEM COMPONENT
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10.3.1 Flow Conditions - Insure tha
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ates constant. For each calibration
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10. DETERMINATION OF OZONE IN THE A
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7.0 APPARATUS 7.1 Sampling Probe -
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9.4 Blank Correction - Measure the
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11. CONTINUOUS MEASUREMENT OF OZONE
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FIG. 1 SCHEMATIC DIAGRAM OF A TYPIC
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8.2 Air Inlet Filter - A Teflon fil
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9.0 REAGENTS 9.1 Purity - All reage
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Where : Ozone Conc.CTA = the ozone
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1. AIR SAMPLING - GASEOUS 1.0 TITLE
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55 Fig. 1 Sampling Train
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57 Fig. 4 Critical Orifice Device
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the pollutant and accordingly selec
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(iii) Technical Data Measuring rang
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3.1.3 Wind Speed Temperature measur
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(v) Preparation for Use (a) Selecti
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CIRCUIT DIAGRAM - 1 67
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FIG. 1 (a) CIRCUIT DIAGRAM 69
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3. DETERMINATION OF SUSPENDED PARTI
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measurement precision dominates at
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6.4.4 Equilibration Rack - This rac
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Receive Filters, inspect (light tab
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of the face-plate. Look underneath
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Atmosphere". Federal Register, 52 F
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5.0 INTERFERENCES 5.1 Passive Depos
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6.4.4 Numbering Machine - Though fi
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chain-of-the custody log-book and o
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5. DETERMINATION OF SULPHUR DIOXIDE
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91 FIG. 1.0 SO2 SAMPLING TRAIN
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The wavelength calibration of the i
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(ii) The absorbance of the reagent
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pipe cleaner after use. If, the tem
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(A - Ao) (10 3 ) (B) C = ----------
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Then the air sample flows into a re
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integral part of the apparatus, or
Page 266 and 267: 6.4 Pressure Regulator The output s
Page 268 and 269: FIG. 2 SCHEMATIC DIAGRAM OF A CALIB
Page 270 and 271: 7. CONTINUOUS MEASUREMENT OF CARBON
Page 272 and 273: 6.0 APPARATUS 6.2 NDIR Analyser - f
Page 274 and 275: BLOWER SAMPLE INLET PORT FOUR WAY V
Page 276 and 277: Maintain the same sample cell flow
Page 278 and 279: 14.0 CALIBRATION PROCEDURE 14.1 Ana
Page 280 and 281: connected to the output manifold, t
Page 282 and 283: FIG. 3 MULTIPLE CYLINDER CALIBRATIO
Page 284 and 285: (Nondispersive Infrared Spectrometr
Page 286 and 287: 5.0 INTERFERENCES 5.1 Nitric oxide
Page 288 and 289: 7.1.6 Air Pump - Capable of maintai
Page 290 and 291: 9.1.3.2 Solution B - Pipet 25 ml of
Page 292 and 293: 9.4.7 A randomly selected 5-10% of
Page 294 and 295: 9. CONTINUOUS MEASUREMENT OF OXIDES
Page 296 and 297: 9.0 APPARATUS 8.1 Chemiluminescene
Page 298 and 299: SAMPLE INLET PUMP AIR DRYER OZONE G
Page 300 and 301: FIG. 3 CALIBRATION SYSTEM COMPONENT
Page 302 and 303: 10.6.1 Flow Conditions - Insure tha
Page 304 and 305: ates constant. For each calibration
Page 306 and 307: 10. DETERMINATION OF OZONE IN THE A
Page 308 and 309: 7.0 APPARATUS 7.1 Sampling Probe -
Page 310 and 311: 9.4 Blank Correction - Measure the
Page 312 and 313: 11. CONTINUOUS MEASUREMENT OF OZONE
Page 314 and 315: FIG. 1 SCHEMATIC DIAGRAM OF A TYPIC
Page 318 and 319: 9.0 REAGENTS 9.3 Purity - All reage
Page 320 and 321: Where : Ozone Conc.CTA = the ozone
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