Federal Register - June 1, 2021
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Source: Federal Register
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Federal Register / Vol. 86, No. 103 / Tuesday, June 1, 2021 / Proposed Rules ozone. However, they are not included in the RFP baseline.
Biogenic emissions are typically computed using a model which utilizes spatial information on vegetation and land use and environmental conditions of temperature and solar radiation. The model inputs are typically horizontally allocated gridded data, and the outputs are gridded biogenic emissions which can then be speciated and utilized as input to photochemical grid models. In Appendix A, MDE explains that it used the data files created and made available
by EPA. MDE computed biogenic emissions with a modified version of EPAs Biogenic Emission Inventory System BEIS model that utilized county land use data from EPAs land use inventory and temperature and cloud cover data from the National Weather Service. This method is acceptable under EPAs emission inventory guidance.5
8. Emissions Summary The Baltimore base year inventory SIP
contains a summary of 2017 ozone season day emissions by source
category, which is presented in Table 1
of this document. Tables 2 through 7 of this document present the 2017
Baltimore BYE by source category and county. In the Baltimore base year inventory SIP, MDE notes that the biogenic emissions in Table 1 are taken from EPAs NEI 2014 database. Total biogenic emissions for July 2014 were divided by 31 days to develop average ozone season day emissions for each jurisdiction in the Baltimore Area and then added together to develop the Baltimore Area total.
TABLE 12017 BALTIMORE BYE SUMMARY
Tons per ozone season day Source category
VOC
NOX
CO
Point
Quasi-Point
Non-Point
Non-Road
MAR
On-Road Mobile
5.729
1.310
72.233
21.314
0.930
25.860
47.530
7.274
10.931
13.164
7.440
53.720
18.902
6.549
26.954
330.888
3.848
365.010
Anthropogenic Total
Biogenic
127.379
227.640
140.060
2.740
752.152
24.550
NOX
CO
TABLE 22017 BALTIMORE BYE POINT SOURCE EMISSIONS
Tons per ozone season day County name
VOC
Anne Arundel County
Baltimore County
Carroll County
Harford County
Howard County
Baltimore City
0.885
0.876
0.390
0.471
1.036
2.070
13.079
11.531
8.342
3.110
1.266
10.202
5.523
2.788
5.568
0.422
0.920
3.682
Baltimore Area Total
5.729
47.530
18.900
TABLE 32017 BALTIMORE BYE QUASI-POINT SOURCE EMISSIONS
Tons per ozone season day County name
VOC
Anne Arundel County
Baltimore County
Carroll County
Harford County
Howard County
Baltimore City
Baltimore Area Total
NOX
CO
0.793
4.009
4.554
0.451
2.451
1.634
0.066
0.815
0.361
1.310
7.274
6.549
TABLE 42017 BALTIMORE BYE NON-POINT SOURCE EMISSIONS
jbell on DSKJLSW7X2PROD with PROPOSALS
Tons per ozone season day County name
VOC
Anne Arundel County
Baltimore County
Carroll County
5 Emission Inventory Guidance for Implementation of Ozone and Particulate Matter National Ambient Air Quality Standards NAAQS
VerDate Sep<11>2014
17:16 May 28, 2021
Jkt 253001
and Regional Haze Regulations, Page 100, included in the docket for this rulemaking available online
PO 00000
Frm 00014
Fmt 4702
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16.532
20.168
4.810
NOX
2.090
3.200
0.595
CO
2.836
4.206
2.922
at https www.regulations.gov, Docket ID: EPA
R03OAR20210017 PG 130.
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01JNP1
