Table 1.

Top 10 ZIP codes in ACC study areas with the highest hazard index and high occurrence chemicals reported

ZIP code	Hazard index	Emissions (lbs)	County	Population size (2015 estimates)	Unique chemicals	Chemicals with >80% fraction of occurrence
Logan Township, NJ (08014)	21.12	2,103,448	Gloucester	504	66	1,1,2-Trichloroethane, 2-nitropropane, 2,4-dinitrotoluene, benzidine, chlordane, chloroethane, heptachlor, hexachloroethane, malathion, methoxychlor, nitrobenzene, permethrin, thiram, hexachlorobenzene, benzyl chloride, pyridine
Conshohocken, PA (19428)	6.44	806,738	Montgomery	16,580	38	Chlorothalonil, phenanthrene, anthracene
Bristol, PA (19007)	5.44	24,558,903	Bucks	21,125	29	Methyl acrylate, acrylamide, ethyl acrylate, acrylonitrile, methyl methacrylate
Port Richmond and Kensington, PA (19134)	5.07	8,295,962	Philadelphia	60,675	19	Phosphorus
Bridesburg, PA (19137)	4.98	15,945,469	Philadelphia	8,638	35	Benzoyl peroxide, chloromethane, phenol
Marcus Hook, PA (19061)	4.80	19,652,501	Delaware	19,997	38	All chemicals under 80% fraction of occurrence
Chester, PA (19013)	4.44	1,071,511	Delaware	35,130	19	Chloroform
New Castle, DE (19720)	4.18	4,388,569	New Castle	59,250	37	1,2 Dichlorobenzene, chlorobenzene, 1,2,4-Trichlorobenzene 1,3-Dichlorobenzene, 1,4-dichlorobenzene, epichlorohydrin
Delaware City, DE (19706)	4.04	8,842,667	New Castle	1,822	37	Carbon disulfide
PES Oil Refinery Region, PA (19145)	3.06	9,321,891	Philadelphia	47,261	29	o-Xylene