ARB Proposes New Rule to Clean Up State Trucks and Buses

Diesel emissions from freeway trucks are major contributors to poor air quality

The Air Resources Board unveiled a revised draft regulation this week that will require retrofits and engine replacements for the estimated privately owned 300,000 diesel trucks and buses transiting California roadways beginning in 2012.

Staff re-worked an earlier version of the draft regulation to eliminate the need for truckers to replace two trucks in a nine-year span, instead relying more heavily on retrofits for the first two years of the regulation. The revised proposal has a lower cost while preserving important public health benefits.

The proposed regulation now calls for truckers to retrofit pre-2007 model year trucks with soot filters and then requires a gradual modernization of trucks beginning in 2012, so that ultimately all trucks are the cleanest, 2010 or newer models.

This draft regulation addresses the largest unregulated source of diesel emissions in the state. Between 2010 and 2020, ARB estimates that the regulation will prevent 11,000 premature deaths associated with exposure to diesel exhaust, and save roughly $500 million in health care costs during that same period.

"If passed by the Board later this year, this regulation will save thousands of lives and help the hundreds of thousands more who suffer from asthma and other respiratory ailments," said ARB Chairman Mary Nichols. "While we are sensitive to the economic impacts this measure poses to truckers, the public health benefits are far too great not to move forward."

This regulation is projected to cost the trucking industry somewhere between $3.6 to $5.5 billion from 2010 to 2021, which ARB staff estimates will add less than a penny apiece to products hauled by these trucks that people buy, ranging from athletic shoes to television sets. ARB is in the midst of allocating $1 billion in Proposition 1B funds, much of which will go toward helping truckers retrofit and replace trucks.

Other entities, including the U.S. EPA and several California ports are offering financial assistance.

Emissions from diesel particulate matter are associated with causing a variety of health effects including premature death and a number of heart and lung diseases. A recent study looking at the health impacts to West Oakland residents posed by diesel emissions estimates the yearly non-cancer health impacts resulting from exposure to port-related diesel particulate matter emissions in the area: 18 premature deaths (age 30 and older), 290 asthma attacks, 2,600 days of work loss, and 15,000 minor restricted activity episodes. Most of the risk comes from diesel particulate matter emissions from trucks traveling on nearby freeways and marine vessel traffic in the San Francisco Bay Area unrelated to the Port of Oakland.

ARB has put in place stringent regulations to curb the health risk to Californians. The most recent adopted regulations to limit diesel emissions affect cargo handling equipment, transport refrigeration units, truck idling, off-road construction equipment, harbor craft, ship auxiliary engines, port drayage trucks and ships-at-berth. Also, the introduction of cleaner fuel for railroads and ships has contributed to lower pollution around the ports and rail yards.

Later this year, ARB will also consider adopting another proposed regulation involving ocean-going vessel main engines to further reduce diesel soot. State control measures will contribute to an approximate decrease of 80 percent in harmful emissions by 2015.

The Air Resources Board is a department of the California Environmental Protection Agency. ARB's mission is to promote and protect public health, welfare, and ecological resources through effective reduction of air pollutants while recognizing and considering effects on the economy. The ARB oversees all air pollution control efforts in California to attain and maintain health based air quality standards.

The energy challenge facing California is real. Every Californian needs to take immediate action to reduce energy consumption. For a list of simple ways you can reduce demand and cut your energy cost, see our web site at http://www.arb.ca.gov/

Find out:

How to retrofit with diesel particulate filters

air pollution
particle pollution

EPA Provides Further Direction on Implementing Fine Particle Pollution Air Quality Standard

The Environmental Protection Agency (EPA) issued a final rule further outlining steps that state, local and tribal governments must take to reduce fine particle pollution (PM2.5). The rule describes how to apply the New Source Review (NSR) program at facilities that emit fine particles. EPA's NSR program requires industrial facilities to obtain permits outlining emissions controls for target air pollutants before they begin construction.

The rule affects areas that do not meet the 1997 PM2.5 standards. Those areas must meet the standards by 2010.

Today's rule complements the agency's PM2.5 final implementation rule issued on April 25, 2007, which addresses the non-New Source Review provisions of PM2.5 National Ambient Air Quality Standards. A related rule, proposed on Sept. 21, 2007, would complete the PM2.5 preconstruction review program framework by establishing increments, significant impact levels, and significant monitoring concentrations for EPA's Prevention of Significant Deterioration program. Together, these three rules will establish the framework for implementing preconstruction permit components of the 1997 PM2.5 air quality standards.

See the Source:

EPA - NSR

Find out:

How to reduce particulate matter from prime power and emergency generators

air pollution
particle pollution

ARB Proposes to Approve Valley Particulate Matter Plan

Hearing set for May 22 in Fresno

SACRAMENTO - The Air Resources Board released a staff report today that recommends approval of a particulate matter pollution control plan for the San Joaquin Valley that would meet federal health standards on time.

The Board will vote on the staff recommendation -- posted today at http://www.blogger.com/www.arb.ca.gov/planning/sip/sjvpm2.5.htm -- at a hearing in Fresno on May 22. The San Joaquin Valley Air Pollution Control District approved the fine particulate matter state implementation plan April 30.

Local measures such as a strengthened residential wood smoke rule and one of the state's toughest regulations on boilers and glass furnaces will combine with ARB's recently passed off-road construction rule and the upcoming proposed truck regulation to allow the Valley to meet federal fine particulate matter standards by 2014. Parts of the Valley already comply with the particulate matter standard, with southern regions suffering from the worst air quality.

"The combined efforts of ARB and the local air district are lowering soot levels in the Valley every year," said ARB Chairman Mary Nichols. "The question we need to ask Valley residents is, have we accounted for every pollution source? Now that this report is out on the street we will be looking for public input and suggestions leading up to the Board vote later this month."

The plan reduces fine particulate matter exposure by lowering oxides of nitrogen emissions by almost 50 percent and fine particulate matter emissions by over 25 percent from 2005 levels. The plan is based on the $27 million "California Regional Particulate Matter Study," which provides the strongest scientific foundation in the nation for a particulate matter plan.

ARB, the Air District and the United States Environmental Protection Agency will participate in a technology forum to be held at University California, Merced on July 9 to explore new advancements that will be needed to obtain future reductions to meet the U.S. EPA's new more stringent standard for which a revised plan will be due in 2012. In the meantime, ARB will continue to help fund pollution-cutting projects in the Valley through Proposition 1B funds.

Fine particulate matter emissions are associated with causing a variety of health effects including premature death and a number of heart and lung diseases.

The Air Resources Board is a department of the California Environmental Protection Agency. ARB's mission is to promote and protect public health, welfare, and ecological resources through effective reduction of air pollutants while recognizing and considering effects on the economy. The ARB oversees all air pollution control efforts in California to attain and maintain health based air quality standards.

The energy challenge facing California is real. Every Californian needs to take immediate action to reduce energy consumption. For a list of simple ways you can reduce demand and cut your energy cost, see our web site at http://www.arb.ca.gov/

See the Source:

California Air Resources Board

Find out:

How to reduce particulate matter using diesel particulate filters from CleanAIR Systems

air pollution
particle pollution

American Lung Association Issues State of the Air Report

First City Outside California (Pittsburth) Tops One of the Most-Polluted Lists

National Trends Show that Declines in Ozone and Particle Pollution Have Stalled

The American Lung Association issued its annual report card on air pollution today, ranking cities most affected by three types of pollution: short-term particle pollution, year-round particle pollution and ozone pollution. For the first time ever, a city outside California, Pittsburgh, Pennsylvania, tops one of the most polluted lists in the ninth consecutive American Lung Association State of the Air report.

Pittsburgh moved to the top of the list of cities most polluted by short-term levels of particle pollution, a deadly cocktail of ash, soot, diesel exhaust, chemicals, metals and aerosols that can spike dangerously for hours to weeks on end. The body’s natural defenses, coughing and sneezing, fail to keep these microscopic particles from burrowing deep within the lungs, triggering serious problems such as breathing, asthma and heart attacks, strokes, lung cancer and even early death. Pittsburgh also ranks second on the list of cities with the most year-round particle pollution while Los Angeles again claims the first spot this year.

Los Angeles, despite being ranked atop two of the three most-polluted lists, saw continued improvements in air quality, dropping its year-round particle pollution levels by nearly one-third during the last decade, and saw solid improvement in levels of ozone or “smog,” a gas formed most often when sunlight reacts with vapors emitted when motor vehicles, factories, power plants and other sources burn fuel. Ozone irritates the respiratory tract and causes health problems like asthma attacks, coughing, wheezing, chest pain and even premature death.

“The air quality in several cities has improved, but in others, declines in pollution have stalled. The trends tell us loud and clear that we need to do more to protect Americans from breathing air that’s simply hazardous to their health,” said Bernadette Toomey, President and Chief Executive Officer, American Lung Association. “We applaud the aggressive efforts of Los Angeles to control particle pollution. It’s proof that making a commitment to clean up pays off.”

Several cities across the country lost footing and slipped closer to the top of the list of most ozone-polluted cities, including San Diego, Atlanta, Charlotte and the Baltimore-Washington, D.C. metro area. Birmingham, Alabama, joined the list for the very first time, ranking at number 22 of most ozone-polluted cities, while the five worst cities on this list actually saw modest improvements. Fresno, California, for example, experienced a remarkable decline in the number of high ozone days since its peak in 2001-2003.

Due to the lead time for the State of the Air report, the American Lung Association used the U.S. Environmental Protection Agency’s (EPA) 1997 standard for ozone levels rather than the new tighter standard announced on March 12, 2008.

“If we were to measure the number of unhealthy days against the new ozone standard, it would show that ozone pollution is worse than the report indicates,” said Ms. Toomey. “Even with these stricter ozone standards, Americans are being denied the health protection they deserve under the Clean Air Act.”

National trends: declines in ozone and particle pollution have stalled.

New this year, the State of the Air report provides online charts showing the trends in ozone and year-round particle pollution in each of the 25 most polluted cities. The ozone charts cover data from 1996 to 2006, while the year-round particle pollution charts show trends from 2000-2006. In addition, the report incorporates the EPA analyses of ozone trend data from 1990 to 2006 and particle pollution trend data for 2000-2006. The State of the Air trend charts and the EPA analyses confirm that air pollution levels dropped in the early years of this century, but have leveled off in the last three years, particularly when controlled for weather.

Other Key Findings of State of the Air 2008:

- One in 10 people in the U.S. live in areas with unhealthful levels of all three types of pollution: ozone, short-term and year-round particle pollution.
- Two of five people in the U.S live in counties that have un­healthful levels of either ozone or particle pollution.
- Nearly one-third of the U.S. population lives in areas with unhealthful levels of ozone.
- Over one quarter of the people in the U.S. live in an area with unhealthful short-term levels of particle pollution.
- One in six people in the U.S. live in an area with unhealthful year-round levels of particle pollution.

The cities identified in the lists below most often include the respective metropolitan areas.

Top Ten U.S. Cities Most Polluted by Short-Term Particle Pollution: 1) Pittsburgh, Pa.; 2) Los Angeles/Long Beach/Riverside, Calif.; 3) Fresno/Madera, Calif.; 4) Bakersfield, Calif.; 5) Birmingham, Ala.; 6) Logan, Utah 7) Salt Lake City, Utah ; 8) Sacramento, Calif.; 9) Detroit, Mich.; 10) Baltimore, Md./Washington, D.C./Northern Virginia.

Top Ten U.S. Cities Most Polluted by Year-Round Particle Pollution: 1) Los Angeles/Long Beach/Riverside, Calif.; 2) Pittsburgh, Pa.; 3) Bakersfield, Calif.; 4) Birmingham, Ala.; 5) Visalia/Porterville, Calif.; 6) Atlanta, Ga.; 7) Cincinnati, Ohio; 8) Fresno/Madera, Calif. 9) Hanford/Corcoran, Calif.; 10) Detroit, Mich.

Top Ten U.S. Cities Most Polluted by Ozone: 1) Los Angeles/Long Beach/Riverside, Calif.; 2) Bakersfield, Calif.; 3) Visalia/Porterville, Calif.; 4) Houston, Texas; 5) Fresno/Madera, Calif. 6) Sacramento, Calif. 7) Dallas-Fort Worth, Texas; 8) New York, N.Y./Newark, N.J.; 9) Baltimore, Md./Washington, D.C./Northern Virginia; 10) Baton Rouge, La.

To see what grade (A to F) your community’s air quality earned, visit the American Lung Association website at http://www.lungusa.org/. Tips are also available on how to protect yourself and your family from air pollution.

air pollution
particle pollution

Test Your Air Knowledge During National Air Quality Awareness Week

EPA and the National Weather Service challenge all Americans to improve their knowledge of the Air Quality Index (AQI) during the annual “Air Quality Awareness Week” that takes place this year from April 28 to May 2, 2008. As warm weather approaches, using the AQI will help reduce exposure to ground-level ozone pollution. The Air Quality Index is EPA’s color-coded tool for communicating air quality to the public. The most common AQI forecasts range from “code green,” --- a good day to engage in outdoor activities, to “code red” --- when everyone should use caution.

This summer, residents of many cities may notice more “code orange” ozone days than in the past. The potential increase in these “orange” days does not mean air quality is getting worse; it is a result of EPA’s recent strengthening of the national ozone standards. However, any time air quality reaches “code orange,” those sensitive to ground-level ozone should alter their outdoor activities to reduce exposure.

The daily AQI forecast is widely available from a variety of electronic and print media sources. Members of the public can also receive daily email updates of the air quality forecast by subscribing and following the directions on “EnviroFlash” at: http://www.airnow.gov/ Recent improvements to EnviroFlash make it easier to use. Just enter: the name, e-mail address, and zip code and EnviroFlash will find the nearest local forecast. The information can also be customized to select a specific forecast to be received, such as for “code red” days only.

See the Source:

State and local Air Quality Awareness Week events

National Weather Service - air quality forecast

ARB Proposes Landmark Truck Regulation

Diesel emissions from freeway trucks are major contributors to poor air quality

Members of the Air Resources Board today emphasized the importance of passing a proposed state regulation before the Board later this year aimed at cleaning up emissions from 300,000 private diesel trucks after hearing a presentation from staff on additional health risks posed to West Oakland residents primarily by trucks transiting local freeways.

The study, developed in collaboration with the Bay Area Air Quality Management District, the Maritime Port of Oakland and Union Pacific Railroad, reveals that the estimated lifetime potential cancer risk for residents of West Oakland from exposure to diesel emissions is about 1,200 excess cancers per million people. The analysis covers 3.1 million people who reside in the affected area of 3,800 square miles.

While diesel trucks account for a majority of the risk in West Oakland resulting in about 850 potential cancer cases per million or 70 percent, port operations account for an estimated lifetime potential cancer risk of 200 excess cancer cases per million, or about 15 percent of the total. Union Pacific railyard emissions amount to a potential cancer risk of about 40 excess cancer cases per million, or less than 5 percent and the remaining 10 percent of risk comes from a variety of diesel sources such as passenger trains and construction projects.

"This health assessment strenghtens our resolve to clean up the estimated 300,000 diesel trucks currently spewing health-threatening soot throughout the state," ARB Chairman Mary Nichols said. "If we fail to pass this regulation, West Oakland residents will continue to be endangered by this huge unregulated source of diesel emissions."

In the development of the ship emissions, ARB staff used transponder data (continuously reports ship location) to more accurate estimate where off-shore emissions are occurring. For the first time in a large risk assessment, a regional wind field was generated using data from 30 onshore and 3 offshore weather stations. The CALPUFF model was used to estimate the ambient concentration of diesel particulate matter. This model is capable of producing more precise results than the models used in the past due to its ability to account for highly varying wind fields and complex terrain.

Emissions from diesel particulate matter are associated with causing a variety of health effects including premature death and a number of heart and lung diseases. The study also estimates the yearly non-cancer health impacts resulting from exposure to port-related diesel particulate matter emissions in the area: 18 premature deaths (age 30 and older), 290 asthma attacks, 2,600 days of work loss, and 15,000 minor restricted activity episodes.

Having identified diesel particulate matter as a toxic air contaminant in 1998 due to its potential to cause cancer and other respiratory problems, ARB has put in place stringent regulations to curve the health risk to Californians. The most recent adopted regulations to limit diesel emissions affect cargo handling equipment, transport refrigeration units, truck idling, off-road equipment, harbor craft, ship auxiliary engines, port drayage trucks and ships-at-berth. Also, the introduction of cleaner fuel for railroads and ships has contributed to lower pollution around the ports and railyards.

Later this year, ARB will be considering proposed regulations involving on-road heavy duty diesel vehicles (trucks and buses) and ocean-going vessel main engines to further reduce diesel soot. State control measures will contribute to an approximate decrease of 80 percent in harmful emissions by 2015.

See Source:
ARB - West Oakland health risk assessment

Find out:
How to reduce diesel particulate matter using diesel particulate filters (DPFs)

diesel pollution

EPA Publishes Annual National Greenhouse Gas Inventory

The U.S. Environmental Protection Agency has released the national greenhouse gas inventory, which finds that overall emissions during 2006 decreased by 1.1 percent from the previous year. The report, Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2006, is the latest in an annual set of reports that the United States submits to the Secretariat of the United Nations Framework Convention on Climate Change, which sets an overall framework for intergovernmental efforts to tackle the challenge posed by climate change.

“Each year since 1993, EPA’s experts have built a comprehensive inventory of U.S. greenhouse gas emissions,” said Robert Meyers principal deputy assistant administrator for EPA’s Office Air and Radiation. “Our understanding of emission sources is paramount to combating climate change.”

Total emissions of the six main greenhouse gases in 2006 were equivalent to 7,054.2 million metric tons of carbon dioxide. These gases include carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride. The report indicates that overall emissions have grown by 14.7 percent from 1990 to 2006, while the U.S. economy has grown by 59 percent over the same period.

The decrease in emissions in 2006 was due primarily to a decrease in carbon dioxide emissions associated with fuel and electricity consumption. The following factors were primary contributors to this decrease:
· compared to 2005, 2006 had warmer winter conditions, which decreased consumption of heating fuels, as well as cooler summer conditions, which reduced demand for electricity;
· restraint on fuel consumption caused by rising fuel prices, primarily in the transportation sector; and
· increased use of natural gas and renewables in the electric power sector.

EPA prepares the annual report in collaboration with experts from multiple federal agencies and after gathering comments from a broad range of stakeholders across the country.

The inventory tracks annual greenhouse gas emissions at the national level and presents historical emissions from 1990 to 2006. The inventory also calculates carbon dioxide emissions that are removed from the atmosphere by “sinks,” e.g., through the uptake of carbon by forests, vegetation and soils.

See the Source:

Greenhouse Gas Inventory Report

climate change