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

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changed in inclement weather. Set the timer for the desired start and stop time. Replace the chart paper in the flow recorder, if there is one, set the proper time, and mark the time and date on the chart. For a manually flow controlled sampler turn on the motor for five minutes and measure the exhaust pressure with a pressure gauge or rotameter. Read the flow rate corresponding to this exhaust pressure from the calibration curve and record it on the data sheet. Turn off the motor and assure that the timer is in its automatic mode. For automatically flowcontrolled units, record the designated flow rate on the data sheet. Record the reading of the elapsed time meter. The specified length of sampling is commonly 8 hours or 24 hours. During this period, several reading (hourly) of flow rate should be taken. After sampling is complete, record the final flow rate and the elapsed time in the same manner. Subtract the initial elapsed time from the final elapsed time to determine the sample duration. Remove the face-plate by removing the wing-nuts. Fold the filter in half lengthwise by handling it along its edge with the exposed side inward. Insert the filter in its jacket. Note the presence of insects on the deposit, loose particles, non-centered deposits, evidence of leaks, and unusual meteorological conditions on the data sheet. Mark the flow recorder chart, if any, and return it with the data sheet. The following precautions must be followed in sampling of air pollutants m) The high volume sampler (HVS)/respirable dust sampler (RDS) must be properly calibrated to get the correct flow rate. n) Corrective and preventive maintenance of the HVS/RDS must be done. o) The filter used sampling should be of good <strong>quality</strong> (having better mechanical stability, chemical stability, particle sampling efficiency, flow resistance, cost and availability etc.) p) Filter should be mounted properly on the support screen with the rough side of the filter facing upwards. q) The wing nuts should be tightened properly to avoid any leakage r) Weighing of filter paper must be done after conditioning in dessicator having active moisture absorbent. s) Weighing of filter paper must be done in balance having accuracy of 0.01 mg and silica gel bottle must be kept in weighing chamber to avoid error while weighing. t) Distilled water must be used in manometer tube and water must be changed every fortnightly and zero level must be checked every time. u) Shelter should be provided at the sampling site for protection of instruments during rainy season. 88
v) Ice should be kept in the sampling tray during sampling to avoid evaporation loss and better absorption. w) Evaporation loss if any must be made up with distilled water. x) Proper preservation of samples must be done after sampling. Gaseous samples must be preserved properly in an ice box or refrigerator (below 5 ° C) prior to analysis. 89
Page 1 and 2:
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
Page 37 and 38: 2. Infrastructure for conducting In
Page 39 and 40: ZERO GAS VALVE PRESSURE REGULATOR (
Page 41 and 42: is to assess its ability to perform
Page 43 and 44: The mixing ratio of O3 (ppb) must n
Page 45 and 46: (vi) Lack of Dedicated Manpower If
Page 47 and 48: Site staff must be trained so that
Page 50 and 51: NATIONAL AMBIENT AIR QUALITY MONITO
Page 52 and 53: Delhi - 110 032 e-mail : cpcb@alpha
Page 54 and 55: FOREWORD Under the Air (Prevention
Page 56 and 57: Table No. References 161 LIST OF TA
Page 58 and 59: 3.0 INTRODUCTION Air pollutants are
Page 60 and 61: The Central Pollution Control Board
Page 62 and 63: S.No. Problem Area Type of Industry
Page 64 and 65: (viii) High population exodus to th
Page 66 and 67: Monthly average of CO measured at B
Page 68 and 69: Concentration (µg/m 3 ) 2.2.3 Long
Page 70 and 71: 3.2 National Air Monitoring Program
Page 72 and 73: Number of Monitoring Stations 40 35
Page 74 and 75: 4.0 GUIDELINES FOR MONITORING For s
Page 76 and 77: The data requirements, which are re
Page 78 and 79: their levels and determine trends.
Page 80 and 81: Station Type Description traffic vo
Page 82 and 83: Criteria for SO2 Measurements Sourc
Page 84 and 85: calibration parameters change. Meas
Page 86 and 87: The following must be followed for
Page 90 and 91: 5.0 QUALITY ASSURANCE AND QUALITY C
Page 92 and 93: (a) Inter Laboratory Proficiency Te
Page 94 and 95: The primary requirement for conduct
Page 96 and 97: ZERO GAS VALVE PRESSURE REGULATOR (
Page 98 and 99: is to assess its ability to perform
Page 100 and 101: The mixing ratio of O3 (ppb) must n
Page 102 and 103: (xiii) Lack of Dedicated Manpower I
Page 104 and 105: laboratory staff must be trained so
Page 106 and 107: 1. AIR SAMPLING - GASEOUS 1.0 TITLE
Page 108 and 109: 52 Fig. 1 Sampling Train
Page 110 and 111: 54 Fig. 4 Critical Orifice Device
Page 112 and 113: the pollutant and accordingly selec
Page 114 and 115: contracts with change in humidity.
Page 116 and 117: and temperature has been set down i
Page 118 and 119: The impulse frequency emitted is pr
Page 120 and 121: CIRCUIT DIAGRAM - 1 64
Page 122 and 123: FIG. 1 (a) CIRCUIT DIAGRAM 66
Page 124 and 125: 3. DETERMINATION OF SUSPENDED PARTI
Page 126 and 127: measurement precision dominates at
Page 128 and 129: 6.4.4 Equilibration Rack - This rac
Page 130 and 131: Receive Filters, inspect (light tab
Page 132 and 133: of the face-plate. Look underneath
Page 134 and 135: Atmosphere". Federal Register, 52 F
Page 136 and 137: 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
Page 186 and 187:
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
Page 232 and 233:
3. DETERMINATION OF SUSPENDED PARTI
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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 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
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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
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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
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8.2 Air Inlet Filter - A Teflon fil
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9.0 REAGENTS 9.3 Purity - All reage
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Where : Ozone Conc.CTA = the ozone
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