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????yuzhao_at_nju.edu.cn ? ?025-89680650
2013.11.1
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??????? (emission inventory)

• An emissions inventory is a database that lists,
  by source, the amount of air pollutants
  discharged into the atmosphere of a community
  during a given time period.
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• An emission inventory includes estimates of the
  emissions from various pollution sources in a
  specific geographical area. A complete inventory
  typically contains all regulated pollutants.
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  (SO2?NOX?CO?NH3?VOC?TSP?PM10?PM2.5?BC (black
  carbon)?OC (organic carbon)?Hg) ,?????/????

Source USEPA http//www.epa.gov/air/aqmportal/m
anagement/emissions_inventory/
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PM2.5????????????????
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SNA(SO42-NO3-NH4)???????PM2.5????????? OC(???,?
???????VOC???)?PM2.5????????
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???????/?????

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• -?????????????????????(VOC,NH3,????,BC,OC?
  )
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  ???????????????

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????(Bottom-up)?????????
The choice of method depends on the availability
of data, time, staff and funding.
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• Continuous monitoring to measure actual
  emissions
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• Extrapolating the results from short-term source
  emissions tests
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• Combining published emission factors with known
  activity levels
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i, ??
j, ??
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k, ??

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m, ???? n, ??????
Source USEPA http//www.epa.gov/air/aqmportal/m
anagement/emissions_inventory/
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• An emission factor may be used to estimate
  emissions when actual emission data is not
  available. In most cases, these factors are
  simply averages of all available data of
  acceptable quality, and are generally assumed to
  be representative of long-term averages for all
  facilities in the source category.
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• Variations in the conditions at a given facility,
  such as the raw materials used, temperature of
  combustion, and emission controls, can
  significantly affect the emissions at an
  individual location. Whenever possible, the
  development of local emission factors is highly
  desirable.
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  ????????????

Source USEPA http//www.epa.gov/air/aqmportal/m
anagement/emissions_inventory/
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????????????(????????)
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??????????? ??????(??/??)
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?????-??
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?????????????
????????????!
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????????-??
A ????? (Mt) U ???? (MW) T ????? (h) Q
???? (gce/kWh)
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2003?????????????????5??
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?????-???
???????????
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????????-???
?????/ ?? ??????/?? ??????????????/?? ????
?? 75.06 178.44 54.04 ??????
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????????0.72?????????,?????????????????????????,?
???0.285-0.95?
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?????-????
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?????-??
- ?????????VOC???????? - ??????????????????(?????
?????)???
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?????-????

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??????-??????
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?? ??? 93.5 60
?? ???-???? 95 80
?? ??(??) 60 lt50
?? ???? 99.94 99-99.8
????????????99.9,???????????
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???????
http//www.epa.gov/ttn/chief/ap42/
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AP-42 ?????(USEPA)-??
???????????? ???????????
?? (µm) ?????(lt????) ?????(lt????) ?????(lt????) ???? (lb/ton) ???? (lb/ton) ???? (lb/ton)
?? (µm) ?? ?? ?? ?? ?? ??
?? (µm) ?? ???? ?? ?? ???? ??
15 32 63 79 3.2A 1.26A 0.016A
10 23 55 67 2.3A 1.10A 0.013A
6 17 46 51 1.7A 0.92A 0.010A
2.5 6 24 32 0.6A 0.48A 0.006A
1.25 2 13 21 0.2A 0.26A 0.004A
1.00 2 10 18 0.2A 0.20A 0.004A
0.625 1 7 - 0.1A 0.14A -
?? 100 100 100 10A 2A 0.02A
A?????
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??????????-????NOX
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??????????????????? (kg/t)
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A?????
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????/?????????

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??????????(gce/kWh)
??????? ????????
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??????????????(?)
PM2.5-10
PM2.5
PMgt10
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? ? ! ???? yuzhao_at_nju.edu.cn 025-89680650