Appendix B to 62 RCNY Chapter 5 : Industrial Air Quality Checklist

To determine the potential for exceedance of the New York State Department of Environmental Conservation (DEC) Division of Air Resources Guidelines for Evaluation and Control of Ambient Air Contaminants (DAR-1) guidelines at a developable site resulting from industrial emissions, emissions from industrial sources within 400 feet of the development site shall be determined from emission limits in permits issued by the New York City Department of Environmental Protection (DEP) or for unpermitted sources, from the estimated emission limits provided by the lead agency and for Title V or state facility-permitted sources within 1,000 feet of the development site, from the emissions limits in the DEC Title V or state facility permits. For purposes of this Appendix, industrial sources means air emission sources (direct and fugitive emissions) that have or should have an existing or expired DEP Clean Air Tracking System industrial permit, concrete batching plants, or material handling facilities. The emissions from any existing industrial or state permitted source or emission assumptions for any unpermitted industrial source must first be converted into grams/second. This converted emission rate must then be multiplied by the value in the table below corresponding to the minimum distance between the industrial source and the building containing the new dwelling units to determine if the National Ambient Air Quality Standards (including background concentrations) and AGC/SGC values in the DAR-1 guidelines are exceeded. Values are provided for 1-hour and annual averages to enable the comparison of pollutant levels to SGCs (1-hour averaging period) or AGCs (annual averaging period).

Distance from Source	1-Hour Averaging Period (ug/m3)	3-Hour Averaging Period (ug/m3)	8-Hour Averaging Period (ug/m3)	24-Hour Averaging Period (ug/m3)	Annual Averaging Period (ug/m3)
30 ft	124,848	61,874	46,700	38,284	5,251
60 ft	31,284	15,479	12,721	10,292	1,386
90 ft	13,936	6,884	6,098	4,858	645
120 ft	7,857	4,028	3,658	2,877	378
150 ft	5,038	2,721	2,476	1,926	252
180 ft	3,507	1,982	1,808	1,393	181
210 ft	2,599	1,520	1,390	1,063	138
240 ft	2,038	1,211	1,109	844	110
270 ft	1,684	992	910	692	90
300 ft	1,449	831	764	580	75
330 ft	1,282	714	653	496	64
360 ft	1,153	631	566	431	56
400 ft	1,015	559	477	364	47

 

(Added City Record 4/25/2024, eff. 5/25/2024)