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

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(Nondispersive Infrared Spectrometry)", Southwest Research Institute, Contract CP 70-40, SWRI Report 01-2811, San Antonio, TX, USA, May 1972. 5. Smith, F. and Nelson, A.C., "Guidelines for Development of Quality Assurance Programme. Reference Method for Continuous Measurement of CO in the Atmosphere", Environmental Protection Agency Document, EPA-R4-73-028a. Research Triangle Institute Park, NC, USA, 1973. 6. EPA QA Handbook, Vol. 2, EPA-600/4-77-027a, Section 2.6.0, "Reference Method for Determination of Carbon Monoxide in the Atmosphere (Nondispersive Infrared Photometry). 118
8. DETERMINATION OF NITROGEN DIOXIDE IN THE ATMOSPHERE 1.0 TITLE Method for determination of Nitrogen Dioxide in the Atmosphere (Sodium Arsenite method). 2.0 PURPOSE The purpose is to lay down an uniform and reliable method for sampling and analysis of nitrogen dioxide in ambient air. 3.0 PRINCIPLE 3.1 <strong>Ambient</strong> nitrogen dioxide (NO2) is collected by bubbling air through a solution of sodium hydroxide and sodium arsenite. The concentration of nitrite ion (NO - 2) produced during sampling is determined colorimetrically by reacting the nitrite ion with phosphoric acid, sulfanilamide, and N-(1-naphthyl)-ethylenediamine dihydrochloride (NEDA) and measuring the absorbance of the highly colored azodye at 540 nm. 3.2 The nominal range of the method is 9 to 750 µg NO2/m 3 (0.005 to 0.4 ppm) 3 . The range of the analysis is 0.04 to 2.0 µg NO - 2/ml, following Beer's Law throughout this range (0 to 1.0 absorbance units). Under the specified conditions of 50 ml of absorbing reagent, a sampling rate of 200 cm 3 /min for 24 hours, and a sampling efficiency of 0.82, the range of the method is, therefore, 9 to 420 µg/NO2/m 3 (0.005 to 0.22 ppm). Nitrogen dioxide concentrations in the range of 420 to 750 µg/m 3 (0.22 to 0.4 ppm) are accurately measured by 1:1 dilution of the collected sample. 3.3 Based on results from a collaborative study, the within laboratory standard deviation is 8 µg/m 3 (0.004 ppm) and the between laboratory standard deviation is 11 µg/m 3 (0.006 ppm) over the range of 50 to 300 µg NO2/m 3 (0.027 to 1.16 ppm) 4 . 3.4 Based on results from a collaborative study, the method has an average bias of - 3% over the range of 50 to 300 µg NO2/m 3 (0.027 to 0.16 ppm) 4 . 4.0 SCOPE This method is applicable to 24 hours integrated sampling of NO2 in ambient air. 119
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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
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
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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.
Page 116 and 117:
and temperature has been set down i
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The impulse frequency emitted is pr
Page 120 and 121:
CIRCUIT DIAGRAM - 1 64
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FIG. 1 (a) CIRCUIT DIAGRAM 66
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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
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 178 and 179: 5.0 INTERFERENCES 5.1 Nitric oxide
Page 180 and 181: 7.1.6 Air Pump - Capable of maintai
Page 182 and 183: 9.1.3.2 Solution B - Pipet 25 ml of
Page 184 and 185: 9.4.7 A randomly selected 5-10% of
Page 186 and 187: 9. CONTINUOUS MEASUREMENT OF OXIDES
Page 188 and 189: 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
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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
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 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 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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