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. 79
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 80
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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
Page 190 and 191: SAMPLE INLET PUMP AIR DRYER OZONE G
Page 192 and 193: FIG. 3 CALIBRATION SYSTEM COMPONENT
Page 194 and 195: 10.3.1 Flow Conditions - Insure tha
Page 196 and 197: ates constant. For each calibration
Page 198 and 199: 10. DETERMINATION OF OZONE IN THE A
Page 200 and 201: 7.0 APPARATUS 7.1 Sampling Probe -
Page 202 and 203: 9.4 Blank Correction - Measure the
Page 204 and 205: 11. CONTINUOUS MEASUREMENT OF OZONE
Page 206 and 207: FIG. 1 SCHEMATIC DIAGRAM OF A TYPIC
Page 208 and 209: 8.2 Air Inlet Filter - A Teflon fil
Page 210 and 211: 9.0 REAGENTS 9.1 Purity - All reage
Page 212 and 213: Where : Ozone Conc.CTA = the ozone
Page 214 and 215: 1. AIR SAMPLING - GASEOUS 1.0 TITLE
Page 216 and 217: 55 Fig. 1 Sampling Train
Page 218 and 219: 57 Fig. 4 Critical Orifice Device
Page 220 and 221: the pollutant and accordingly selec
Page 222 and 223: (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 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
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
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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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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
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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 9.3 Purity - All reage
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Where : Ozone Conc.CTA = the ozone
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