Air Environmental
Indicators 1997 |
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Amount of Emissions (1996 Tons) Pollutant |
Stationary Sources |
Mobile Sources |
Area Sources |
Totals |
Carbon Monoxide (CO) | 953 | 73,882 | 38,720 | 113,555 |
Volatile Organic Compounds (VOCs) | 4,247 | 8,439 | 13,830 | 26,516 |
Nitrogen Oxides (NOx) | 687 | 17,295 | 6,400 | 24,382 |
Total Pollution | 5,887 | 99,616 | 58,950 | 164,453 |
Permitted Air Pollution Sources | ||||
Major (> 100 tons actually emitted) | 15 | |||
Minor (< 100 tons actually emitted) | 284 | |||
Stage I (Gasoline Service Stations) | 248 | |||
Transportation (parking) Facilities | 29 | |||
Total | 576 | |||
Days Exceeding Standard | ||||
Ozone (O3) | 0 | |||
Carbon Monoxide (CO) | 0 | |||
Other (PM-10, NOx, SOx, Radiation) | 0 | |||
Air Quality Index (AQI) | ||||
Good Days | 218 | |||
Moderate Days | 145 | |||
Unhealthful Days | 2 | |||
Mobile Source Activity | ||||
Registered Vehicles | 471,964 | |||
Daily Vehicle Miles Travelled (VMT) | 21,000,000 | |||
Bus Transit Ridership (Total Passengers) | 12,127,525 | |||
Journey-to-Work Trips using Transit System | 3% | |||
Weather | ||||
Days Classified as Hazy | 69 | |||
Number of Days > 90oF | 50 | |||
Notices of Violation (non-procedural) | ||||
Permitted Sources | 58 | |||
Total (Permitted, Registered, and non-permitted Sources) | 69 |