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

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of the face-plate. Look underneath the inlet just as it is coming into contact with the face-plate to assure that this contact is being made. It may be necessary to readjust the position of the filter/motor assembly in the sampler housing to obtain such a seal. Excessively windy and wet conditions should be avoided when changing samples. Pre-loading in a filter cartridge assembly, temporary removal of the sampler to a protected area, or a wind or rain shield may be used if, the sample must be 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 flow-controlled 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 wingnuts. 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. 9.0 CALCULATIONS 9.1 Calculation of Volume of Air Sampled V = QT V = Volume of air sampled in m 3 Q = Average flow rate in m 3 /minute T = Total sampling time in minute 9.2 Calculation of Suspended Particulate Matter in Ambient Air (Wf - Wi) x 10 6 SPM = ------------------- V Where : SPM = Mass concentration of suspended particles in µg/m 3 Wi = Initial weight of filter in g. Wf = Final weight of filter in g. V = Volume of air sampled in m 3 10 6 = Conversion of g to µg. 76
10.0 REFERENCES 1. Robson, C.D. and K.E., Foster, 1962. Evaluation of air particulate sampling equipment. Amer. Indust. Hyg. Assoc. Journal, 23:404. 2. Olin, J.G. and J.L. Kurz, 1975. High volume air samplers. Poll. Eng. 7(1):30. 3. Rehme K.A., C.F. Smith, M.I. Fitzsimmons, 1984. "Investigation for use in the determination of of ambient particulate matter". 048, Research Triangle Park, N.C. 4. Countess. R.J., 1974. Production of aerosol by high volume samples. J.Air Poll. Cont. Assoc., 24-605. 5. King, R.B. and J. Toma, 1975 “Copper emissions from a high volume air sampler". NASA Technical Memorandum, NASA-TM X-71693. 6. Coutant, R.W., 1977. Effect of environmental variables on collection of atmospheric sulfate. Environ. Sci. & Tech., 11:875. 7. Appel. B.R., Y. Tokiwa. M. Haik and E.L. Kothny, 1984. Artifact particulate sulfate and nitrate formation on filter media. Atmos. Environ. 18:409. 8. Tang. I.N., 1980. Deliquescence properties and particle size change of hygroscopic aerosols. In Generation of Aerosols and Facilities for Exposure Experiments, edited by K. Willeke, Ann Arbor Science Publishers, Ann Arbor, MI. 9. Tierney, G.P., and W. Connor, 1967. Hygroscopic effects on weight determination of particulates collected on glass fiber filters. Amer. Ind. Hyg. Journal, 28:363. 10. Muller, P.K., G.M. Hudy, R.L. Baskett, K.K. Fung, R.C. Henry, T.F. Lavery, K.K. Warren and J.G. Watson, 1983. "The sulfate regional experiment : Report findings : Report EA-1901, Electric Power Research Institute, Palo Alto, CA. 11. Mcfari and. A.R., C.A. Ortiz and C.E. Rodes, 1979. Characteristics of aerosol samplers used in ambient air monitoring 86th National Meeting of the American Institute of Chemical Engineers, Houston. TX. 12. Wedding, J.B., A.R. Mcfart and J.E. Cermak, 1977. Large particle collection characteristics of ambient aerosol samplers. Environ. Sci. & Tech., 4:387. 13. EPA, 1987. "40 CFR Part 53 : Ambient Air Monitoring Reference and Equivalent Methods". Federal Register, 52 FR 24724; "40 CFR Part 50 : Revisions to the National Ambient Air Quality Standards for Particulate Matter, Appendix J- Reference Method for the Determination of Particulate Matter as PM10 in the 77
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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
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 88 and 89: changed in inclement weather. Set t
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 134 and 135: Atmosphere". Federal Register, 52 F
Page 136 and 137: 5.0 INTERFERENCES 5.1 Passive Depos
Page 138 and 139: 6.4.4 Numbering Machine - Though fi
Page 140 and 141: chain-of-the custody log-book and o
Page 142 and 143: 5. DETERMINATION OF SULPHUR DIOXIDE
Page 144 and 145: 88 FIG. 1.0 SO2 SAMPLING TRAIN
Page 146 and 147: The wavelength calibration of the i
Page 148 and 149: (ii) The absorbance of the reagent
Page 150 and 151: pipe cleaner after use. If, the tem
Page 152 and 153: (A - Ao) (10 3 ) (B) C = ----------
Page 154 and 155: Then the air sample flows into a re
Page 156 and 157: integral part of the apparatus, or
Page 158 and 159: 6.4 Pressure Regulator The output s
Page 160 and 161: FIG. 2 SCHEMATIC DIAGRAM OF A CALIB
Page 162 and 163: 7. CONTINUOUS MEASUREMENT OF CARBON
Page 164 and 165: 6.0 APPARATUS 6.1 NDIR Analyser - f
Page 166 and 167: BLOWER SAMPLE INLET PORT FOUR WAY V
Page 168 and 169: Maintain the same sample cell flow
Page 170 and 171: 14.0 CALIBRATION PROCEDURE 14.1 Ana
Page 172 and 173: connected to the output manifold, t
Page 174 and 175: FIG. 3 MULTIPLE CYLINDER CALIBRATIO
Page 176 and 177: (Nondispersive Infrared Spectrometr
Page 178 and 179: 5.0 INTERFERENCES 5.1 Nitric oxide
Page 180 and 181: 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
Page 248 and 249:
chain-of-the custody log-book and o
Page 250 and 251:
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
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
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7. CONTINUOUS MEASUREMENT OF CARBON
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6.0 APPARATUS 6.2 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
Page 282 and 283:
FIG. 3 MULTIPLE CYLINDER CALIBRATIO
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(Nondispersive Infrared Spectrometr
Page 286 and 287:
5.0 INTERFERENCES 5.1 Nitric oxide
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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
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SAMPLE INLET PUMP AIR DRYER OZONE G
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FIG. 3 CALIBRATION SYSTEM COMPONENT
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10.6.1 Flow Conditions - Insure tha
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ates constant. For each calibration
Page 306 and 307:
10. DETERMINATION OF OZONE IN THE A
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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 9.3 Purity - All reage
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Where : Ozone Conc.CTA = the ozone
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