Governor Phil Murphy • Lt.Governor Sheila Oliver
NJ Home | Services A to Z | Departments/Agencies | FAQs  
State of New Jersey-Department of Environmental Protection-Bureau of Stationary Sources
State of New Jersey Department of Environmental Protection
DEP Home | BoSS Home | About DEP | Index by Topic | Programs/Units | DEP Online 

MORRIS COUNTY

Morris County Average 2014 NATA Modeled Air Concentrations Compared to Health Benchmarks
Pollutant Modeled Air Concentration (ug/m3) Health Benchmark (ug/m3) Risk Ratio % Contribution by Source Category
Point Sources Nonpoint Sources Onroad Mobile Nonroad Mobile

Background& Secondary

0.034 0.033 1 0% 22% 65% 11% 2%
0.85 0.45 1.8 0% 3% 7% 1% 89%*
0.47 0.13 3.6 <1% 33% 54% 10% 2%
0.55 0.17 3.2 0% 0% 0% 0% 100%
0.00002 0.000083 0.24 52% 35% 2% 11% 0%
0.42 0.0033 127 0% 0% 77% 23% 0%
0.00024 0.00043 0.5 93% 7% 0% 0% 0%
1.1 0.077 14 0% 5% 5% 2% 88%*
0.0000016 0.0002 0.008 100% 0% 0% 0% 0%
0.03 0.029 1 1% 37% 46% 9% 6%
54% 16% 8% 22% 0%
0.0000001 0.025 0.000004 45% 55% 0% 0% 0%
0.021 0.17 0.12 2% 98% 0% 0% 0%
0.0003 0.11 0.0027 99% 1% 0% 0% 0%












  • Chemicals with risk ratios greater than or equal to 1 are in bold.
    Risk Ratios based on noncarcinogenic effects are in italics.
    The symbol ug/m3 is micrograms per cubic meter, the amount (in micrograms) of a chemical in a cubic meter of air. This is also known as a concentration.
    For diesel particulate matter, onroad and nonroad concentrations include a model-estimated background concentration.
    *Acetaldehyde, acrolein and formaldehyde concentration estimates include secondary formation, which is the process by which chemicals in the air are transformed into other chemicals.
    **PAH/POM is "polycyclic aromatic hydrocarbons/polycyclic organic matter." These define a broad class of compounds. The chemicals making up this class were broken up into 8 groups based on toxicity, and each group was assigned a cancer-weighted toxicity estimate. 0.0072 ug/m3 is the health benchmark average across the 8 groups.


    back to county risk ratio tables