This post was written by guest blogger Deanna Altenhoff, Executive Director of CLEAN AIR Force of Central Texas.
We are all familiar with the term “Ozone Action Day” and typically associate it with a hot summer day. But what does it really mean? The CLEAN AIR Force of Central Texas, the only non-partisan, public/private organization in Central Texas exclusively focused on air quality improvement, explains the significance of ozone pollution – and what you can do to make a difference. The CLEAN AIR Force Board of Directors consists of 32 executives from both the public and private sector, including Dr. Elena Craft of the Environmental Defense Fund, united in the common goal of finding workable solutions for improving our region’s air quality. The CLEAN AIR Force is not about waiting for the federal government to tell us what to do to clean up our air; we’re about taking early action now to keep air quality decisions at the local level.
The CLEAN AIR Force oversees a number of voluntary air quality programs that serve the public and help to reduce ozone levels in the Central Texas region. Two examples of those programs are the Clean Air Partners Program and the Clean School Bus Program. We help implement and coordinate the air quality improvement efforts of local businesses, governments and organizations through our Clean Air Partners Program and we help retrofit and replace older polluting school buses with newer cleaner technologies and implement anti-idling policies through our Clean School Bus Program. Educating citizens on what they can do to reduce their emissions is also a key part of our mission.
Central Texas is considered near-nonattainment for ground-level ozone under the Environmental Protection Agency’s (EPA) National Ambient Air Quality Standards (NAAQS). The ozone standard is currently set at 75 parts per billion (ppb) and the Central Texas Design Value for 2012 was 74 ppb. Despite two new and lower ozone standards in the past 16 years and a doubling of the population in the last 22 years, Central Texas has been able to avoid nonattainment because of positive weather conditions and the many pro-active air quality efforts our region is making, but there are many challenges ahead.
EPA has announced they may lower the existing standard of 75 ppb to 60-70 ppb by the end of 2013. This means we must continue to work together as a region to significantly lower our ozone emissions or risk being designated as nonattainment, which would negatively impact both public health and the health of our economy.
So what’s so bad about ozone health-wise? Ozone is a form of oxygen that is formed through chemical reactions between natural and man-made emissions of Volatile Organic Compounds (VOCs) and oxides of nitrogen (NOx) in the presence of sunlight. Sources of VOCs and NOx include automobiles, boats, refineries, chemical manufacturing plants, solvents used in dry cleaners and paint shops, and wherever natural gas, gasoline, diesel fuel, kerosene, and oil are combusted.
Ozone Season in Central Texas runs from April 1st to October 31st. Ozone pollution is mainly a daytime problem during summer months because warm temperatures are key to its formation. When temperatures are high, sunshine is strong, and winds are low, ozone can accumulate to unhealthy levels. Read More