Ground-level ozone is an air pollutant known to cause a number of health effects and negatively impact air quality and the environment in the state of New Jersey.  Ozone is formed when oxides of nitrogen (NOx) and volatile organic compounds (VOCs) react in the presence of sunlight.  Ozone can irritate any set of lungs, but those with lung-related deficiencies should take extra precautions on bad ozone days.

Visit the link below to learn more about ozone and its health effects, and to view reports from days when New Jersey has exceeded federal ozone standards.

Particulate matter is the term for particles found in the air, including dust, dirt, soot, smoke, and liquid droplets. Many manmade and natural sources emit particulate matter directly or emit other pollutants that react in the atmosphere to form particulate matter. Sources of fine particles include all types of combustion activities (motor vehicles, power plants, wood burning, etc.) and certain industrial processes. Other particles may be indirectly formed when gases from burning fuels react with sunlight and water vapor.

Particles less than 10 micrometers in diameter (PM10) pose a health concern because they can be inhaled into and accumulate in the respiratory system. Particles less than 2.5 micrometers in diameter, PM2.5 are referred to as “fine” particles and are believed to pose the greatest health risks. Because of their small size (approximately 1/30th the average width of a human hair), fine particles can lodge deeply into the lungs. Particles with diameters between 2.5 and 10 micrometers are referred to as “coarse.”

Health studies have shown a significant association between exposure to fine particles and premature death. Other important effects include aggravation of respiratory and cardiovascular disease (as indicated by increased hospital admissions, emergency room visits, absences from school or work, and restricted activity days), lung disease, decreased lung function, asthma attacks, and certain cardiovascular problems such as heart attacks and irregular heart beat. Individuals particularly sensitive to fine particle exposure include older adults, people with heart and lung disease, and children. Roughly one out of every three people in the United States is at a higher risk of experiencing PM2.5 related health effects: active children because they often spend a lot of time playing outdoors and their bodies are still developing and oftentimes the elderly population is at risk.

The mobile source planning group within Air Quality Planning is responsible for estimating emissions of criteria air pollutants from mobile sources for State Implementation Plans (SIPs) and evaluating ways to reduce air pollution. Mobile sources consist of on-road vehicles, including cars, trucks, buses and motorcycles, and non-road vehicles and equipment, such as airplanes, locomotives, commercial marine vessels, recreational watercraft, lawn and garden equipment, forklifts, and construction equipment.

The Clean Air Act (CAA) and federal regulations require that states use atmospheric photochemical grid modeling as part of their demonstration of attainment of the  National Ambient Air Quality Standards (NAAQS) by the required attainment date. The United States Environmental Protection Agency (USEPA) modeling guidance also recommends this approach and provides more detailed recommendations.  Atmospheric modeling is also used to estimate significant contributions of transported emissions and for Regional Haze plans.

Under the coordination of the Ozone Transport Commission (OTC)  Modeling Committee, New Jersey works together with several northeast states to perform regional modeling runs and contribute to the preparation of technical information for the regional modeling efforts.  New Jersey also participates in the Mid-Atlantic Northeast Visibility Union (MANE-VU) whose focus is on the development  of regional strategies for air pollution control to reduce visibility impairment in our national parks and wilderness areas.  New Jersey works with other states as a part of the Mid-Atlantic Regional Air Management Agency (MARAMA) Mid Atlantic Regional Air Management Association – MARAMA and USEPA to develop the regional air emission inventories used in the regional modeling.  Through these regional efforts, the contribution of transported air pollution is estimated, and regional air pollution control strategies are developed.

New Jersey also coordinates regional modeling studies with  the Ozone Research Center of Rutgers University.

New Jersey’s location along the northeast corridor between major metropolitan areas, along with meteorology, makes New Jersey the recipient of air pollutants transported from other States. Westerly winds from the Ohio River Valley and nighttime reservoirs of pollutants from southern States along the Appalachian Mountain Range have been shown to contribute to high ozone and fine particulate concentrations in New Jersey.  To learn more about interstate air pollution transport see Interstate Air Pollution Transport | US EPA.

Many people use wood burning as a primary or supplemental heat source for their homes.  A growing trend is to burn wood in yards for recreational reasons. Fire pits and chimeneas have become increasingly popular. Another source of wood smoke comes from outdoor wood boilers used to heat hot water that in turn heats the home, swimming pools, greenhouses, etc. Wood is a renewable energy source, however, burning wood can impact public health and welfare.

From carpooling to watching your thermostat, there are many things you can do to reduce air pollution. Visit the link below for pollution-preventing tips and tricks you can use on the road, at the office, and in your home.

Not sure what a term means? Check our Glossary and Acronyms page to find out!

• Air Compliance and Enforcement
• Bureau of Stationary Sources / Air Permitting
• Air Monitoring
• Bureau of Mobile Sources
• Clean Air Council
• Environmental Trends Reports