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

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BLOWER SAMPLE INLET PORT FOUR WAY VALVE ZERO AIR SAMPLE MANIFOLD MOISTURE TRAP SPAN GAS ROOF INFRARED SOURCE MOTOR MOISTURE CONTROLLER PARTICULATE MATTER FILTER 108 BEAM CHOPPER REFERENCE CELL FILTER CELL ROTAMETER SAMPLE CELL FLOW CONTROL VALVE INFRARED DETECTOR EXHAUST PUMP AMPLIFIER FIG : 1 TYPICAL CARBON MONOXIDE ANALYSER SYSTEM. ANALYSER READOUT STRIP CHART RECORDER DATA ACQUISITION SYSTEM
6.5.8 Flow Meter - A calibrated flow meter capable of measuring and monitoring the calibration standard flow rate. If, the dilution method is used, a second flow meter is required for the zero-air flow. For dilution, the flow meters shall be capable of measuring the flow with an accuracy + 2%. 6.5.9 Mixing Chamber (Dynamic Dilution Only) - A mixing chamber is required only if the calibrator concentrations are generated by dynamic dilution of a CO standard. Design the chamber to provide thorough mixing of CO and zero-air. 6.5.10 Output Manifold - The output manifold should be of sufficient diameter to ensure an insignificant pressure drop at the analyser connection. The system shall have a vent designated to ensure atmospheric pressure at the manifold and to prevent ambient air from entering the manifold. 7.0 REAGENTS AND MATERIALS 8.1 Zero <strong>Air</strong> - Use a pressurized cylinder of pure air certified to contain less than 0.1 mg/m 3 (0.09 ppm volume fraction) of CO. Alternatively, a catalytic oxidizing agent to convert CO to CO2 or a palladium filter may be used to obtain zero-air. 8.2 Up-scale Span Gas - Use a pressurized cylinder containing a span gas mixture consisting of CO in air corresponding to 80% of full scale. 8.3 Calibration Gases - Use pressurized cylinders containing concentrations of CO in air corresponding to the instrument operating range that is, 10%, 20%, 40% and 80% of full-scale range. They shall be certified to a national standard. Alternatively, if a dilution calibration method is used, a single pressurized cylinder may be used. This may be in nitrogen if the zero-air dilution ratio is not less than 100:1. 8.4 Calibration Certificate - Certify the span and calibration gases to + 2% of the stated value. 8.0 PRECAUTIONS Operate the analyser system in non-explosive areas unless the equipment is explosion-proof. Follow standard safety practices for the handling and storage of compressed gas cylinders and the installation and use of the analyser. Do not expose cylinders of compressed gases of direct sunlight or excessive heat. 109
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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
Page 224 and 225: 3.1.3 Wind Speed Temperature measur
Page 226 and 227: (v) Preparation for Use (a) Selecti
Page 228 and 229: CIRCUIT DIAGRAM - 1 67
Page 230 and 231: FIG. 1 (a) CIRCUIT DIAGRAM 69
Page 232 and 233: 3. DETERMINATION OF SUSPENDED PARTI
Page 234 and 235: measurement precision dominates at
Page 236 and 237: 6.4.4 Equilibration Rack - This rac
Page 238 and 239: Receive Filters, inspect (light tab
Page 240 and 241: of the face-plate. Look underneath
Page 242 and 243: Atmosphere". Federal Register, 52 F
Page 244 and 245: 5.0 INTERFERENCES 5.1 Passive Depos
Page 246 and 247: 6.4.4 Numbering Machine - Though fi
Page 248 and 249: chain-of-the custody log-book and o
Page 250 and 251: 5. DETERMINATION OF SULPHUR DIOXIDE
Page 252 and 253: 91 FIG. 1.0 SO2 SAMPLING TRAIN
Page 254 and 255: The wavelength calibration of the i
Page 256 and 257: (ii) The absorbance of the reagent
Page 258 and 259: pipe cleaner after use. If, the tem
Page 260 and 261: (A - Ao) (10 3 ) (B) C = ----------
Page 262 and 263: Then the air sample flows into a re
Page 264 and 265: 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 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 316 and 317: 8.2 Air Inlet Filter - A Teflon fil
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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