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I'm writing to express my support of this proposed rule.

Construction equipment is the second largest source of diesel
pollution in California, accounting for 20% of particulate
matter(soot) and 16% of smog-forming Nitrogen Oxides (NOx). These
pollutants are two of the biggest pollution hazards for public
health in California and throughout the country.

Exposure to smog can have serious effects on respiratory health.
Inflammation and irritation of the respiratory tract can cause
shortness of breath, throat irritation, chest pains and coughing,
and lead to asthma attacks, hospital admissions and emergency room
visits.

Particulate air pollution or soot can be inhaled and reach deep
into the lungs. These tiny particulates can enter the circulatory
system and damage blood vessels. Particulate pollution is
associated with heart attacks, irregular heartbeat, asthma
attacks, reduced lung function and bronchitis.

These health impacts result in tens of thousands of premature
deaths in the U.S. from heart and lung disease annually, as well
as hospital admissions, emergency room visits, absences from
school or work, and restricted activities related to asthma
attacks. Children are especially vulnerable because their lungs
are still developing.

The proposed rule will:

-- Prevent 4,000 premature deaths;

-- Result in health benefits and reduced health care and hospital
visits of $18 to $26 billion;

-- Help bring the most polluted areas of the state, the Los
Angeles/Long Beach air basin and the San Joaquin Valley, into
attainment with federal air quality standards; and

-- By 2020, prevent 48 tons per day of NOx and 5 tons per day of
particulate air pollution from entering our air.

Please vote to pass this new rule for the health and well-being of
all Californians.