There are currently two kinds of particles regulated by the federal and state governments. "Fine” particles (PM 2.5) are 2.5 micrometers in diameter or smaller. Larger or “coarse” particles (PM 10) are between 2.5 and 10 micrometers in diameter. Both are smaller than the width of a human hair. Leading-edge research suggests the existence of even smaller, more-damaging “ultrafine” particles.

Everyone is at risk, but children are at greater risk because they spent lots of time outdoors playing and their lungs are still developing and sensitive. People most susceptible to harm from air pollution include: Individuals with lung disease – such as asthma, emphysema or chronic obstructive pulmonary disease (COPD);

Particle pollution is usually at its worst in the winter, when stagnant, cold air traps particles close to the ground and wood burning is more popular. Unfortunately, that comforting smoky smell or haze around your neighborhood on cold winter days can be the sign of a health hazard. To help battle particle pollution, our local regulators will begin declaring “Spare the Air” days in the wintertime this year for the first time.

The NFU has worked with Defra and the Environment Agency to reduce farm pollution. Since 1990 this has resulted in the reduction of serious farm-related pollution incidents by 88%. his is proof that farmers are committed to looking after our river sand streams. Around 42,300 beef and dairy farms in England and Wales manage over 160,000 square kilometres land.

IAQ problems are commonly related to ventilation, and air contamination from chemicals, dust, and fibers.

Air pollution has many sources. Some sources are obvious- like industrial smokestacks, chemical plants, automobiles, trucks and buses. Others are not so obvious- like gasoline stations; dry-cleaners; outboard motors; lawn, garden, farm and construction equipment engines; certain paints; and various household products.

Stationary sources include relatively large, fixed facilities such as power plants, chemical process industries, and petroleum refineries. Area sources are small, stationary, nontransportation sources that collectively contribute to air pollution, and include such sources as dry cleaners and bakeries, surface coating operations, home furnaces, and crop burning.

There are many causes for water pollution but two general categories exist: direct and indirect contaminant sources. Direct sources include effluent outfalls from factories, refineries, waste treatment plants etc. that emit fluids of varying quality directly into urban water supplies. In the United States and other countries, these practices are regulated, although this doesn't mean that pollutants can't be found in these waters.

Moisture, dust, carpet, plywood, people, pets, insects, and cigarette smoke are among the leading indoor air contaminants.

Combustion of fuels can cause the release of hydrocarbons (HC), carbon monoxide (CO), oxides of nitrogen (NOx), particulate matter (PM), toxics, sulfur dioxide (SO2), and greenhouse gases such as carbon dioxide (CO2) and nitrous oxide (N2O). Mobile sources produce air pollution from exhaust emissions, as well as evaporative emissions and refueling losses from gasoline engines. The type and amount of pollution depends on many factors: the type of engine or vehicle (e.g.

Unlike biodiesel, which has been extensively studied and found to have vast improvements in emmissions compared to petro-diesel, WVO has not been formally studied at all, as far as I can tell. Part of the problem is that WVO is not a consistent, repeatable fuel, so it's impossible to draw conclusions about what emissions any given restaurant may produce. I've found only one study that concerns SVO, using pure rapeseed oil, which is not what is in your typical dumpster.

EPA is in the process of developing the science that will help us understand how regional, local, and potentially even homeowner sources of air pollutants might have impacted outdoor air in the neighborhoods involved in the DEARS.

Mushrooming of the wick caused by a carbon build up at the tip of the wick creates soot.. To prevent this from happening, do not burn a candle for more than 4 hours at a time. When the candle is cooled, turn it upside down and trim wick to a nub with scissors or clippers.

Soot is created when a flame exceeds 1 inch in length. Keep the wick trimmed to avoid such a high flame. The quality of wax will also determine how much soot a candle will produce. Scented Specialties uses only the finest premium wax blends ensuring one of the cleanest burns possible. Also, drafts cause candle flames to flicker and smoke is released when a flame is disturbed. Keep candles out of drafts. Scented Specialties recommends using some sort of "candle topper" with jar candles.

Also, Letterpress Things is a veritable "Walmart" for the letterpress printer. There is more information at www.letterpressthings.com, or call John Barrett at (413) 222-9029. The Typophiles have their own site at www.typophiles.org, displaying their history, some bibliographic information, and other related info on typography and book making. The South Street Seaport has recreated Bowne & Company as a working letterpress shop in the 19th century, at http://www.southstseaport.

You can have additional non-shadowing light sources. These are specified as objects using a new object type GLOWLIGHT (type 13).

Mary L. Shearer has spent years and thousands of dollars researching Victoria Woodhull. Besides consulting all Victoria Woodhull biographies, she has collected thousands of magazine and newspaper articles and has reviewed unpublished collections. She has her own extensive collection of Victoria Woodhull books and has access to almost the entire Woodhull & Claflin's Weekly. She's read most of Victoria Woodhull's speeches. One day, Mary L.