ER4 Air Quality

Only areas with a white background are considered part of the General Plan.

A clear day looking north from Edenglen in the New Model Colony.

Even though air quality is a regional issue, Ontario has the opportunity to demonstrate its leadership by striving for the healthiest air quality possible and reducing pollution sources within the City.  Better indoor and outdoor air quality for Ontario and the air basin will improve the quality of life of residents, workers and visitors, decrease health care costs and make Ontario more prosperous by making the City a more desirable place to be. Most of the air pollution within Ontario is a result of the City’s location within an inland valley where the predominant wind pattern flows from Orange and Los Angeles counties and backs up against the San Gabriel and San Bernardino Mountains.

The City is home to major transportation goods movement infrastructure – Los Angeles/Ontario International Airport, major interstate highways, and three railway lines – which are major sources of air pollution. This combination of geographical factors and pollution sources contribute significantly to the region’s failure to meet several federal and state standards.

The City of Ontario expects to double its population by 2030.  We intend to develop strategies to minimize the air quality impacts of this growth.  Of particular concern are the City’s future impacts on Global Warming which is caused by an accumulation of Greenhouse Gases (GHG).  The California Global Warming Solutions Act of 2006 was the first legislation cutting global warming pollution in the United States. This legislation requires a cumulative reduction of GHG emissions by City operations and on a project by project basis.



Improved indoor and outdoor air quality and reduced locally generated pollutant emissions.



Land Use.  We reduce GHG and other local pollutant emissions through compact, mixed use, and transit-oriented development and development that improves the regional jobs-housing balance.


Sensitive Land Uses.  We prohibit the future siting of sensitive land uses, within the distances defined by the California Air Resources Board for specific source categories, without sufficient mitigation.


Greenhouse Gases (GHG) Emissions Reductions.We will reduce GHG emissions in accordance with regional, state and federal regulations.


Indoor Air Quality.  We will comply with State Green Building Codes relative to indoor air quality.


Transportation.  We promote mass transit and non-motorized mobility options (e.g. walking, biking) to reduce air pollutant emissions.


Particulate Matter.  We support efforts to reduce particulate matter to meet State and Federal Clean Air Standards.


Other Agency Collaboration.  We collaborate with other agencies within the South Coast Air Basin to improve regional air quality at the emission source.


Tree Planting.  We protect healthy trees within the City and plant new trees to increase carbon sequestration and help the regional/local air quality.


All References are not part of the Policy Plan

  1. South Coast Air Basin Map