What is Visible Air Pollution?

The ambiance is almost entirely made up of invisible gases. Most major air pollutant are invisible, but large amounts of them concerted in areas that cities can be seen as smog. An often visible air contaminants are particulate matter, especially when it surfaces of buildings and other structure have been open to the elements to it for long periods or when it is present in large quantity. Particulate matter consists of tiny particles of solid and / or drops of liquid.Natural sources include volcanic ash, pollen and dust blown by the blustery weather.

"This is not good enough, so I asked them to explain and correct," says Dr. Jackson. "They must high opinion and permission."

When Nelson Mail spoke with Nelson Marlborough District Health Board secretary Mike Cummins, knows no bulletin slat.

"We are working with the Council as much as they affected any resource needs are and do not have a campaign to reduce emissions," said Mr. Cummins. 'We want to think of ourselves as a clean and green unreasonable. "

The hospital uses a grouping of coal and landfill gas for heating and electricity. That a new boiler, and installed in September last year, has a capacity of 2.5 megawatts and produce up to 65 percent of thermal energy to the hospital, and create steam for heating power and hot water, sterilization and cooking. A new boiler that runs on landfill gas from the Valley in New York, is expected to be used to reduce coal expenditure by 630 tons per year.

Mr Cummins said the medical uses about 3300 tons of coal, six years ago. This is now reduced to 1200 tons.
It has paying attention a spring-pot is very clear of non-angry residents after a photo published in the U.S. images to readers of preceding months in the post area.

Photographer said Princes Drive resident and a retired physician Hurst House miles, he took the picture because it was attractive, "When the huge amount of smoke emit."

"It is hard to believe that the hospital can continue to spit from the be on fire," he said.

Saw architect Peter Olorenshaw Nelson, Member of the changeover cities - a global network of cities, focusing on raising awareness of sustainability - the photo and complain to the Health Council, the Council and the efficient use of energy and energy conservation, Mail and Nelson MP Nick Smith said the pollution “is dangerous and must be congested. " He expressed his conviction that there was a major contributor to respiratory problems.

The smog created by burning coal and heavy oil that contains sulfur impurity in power stations, industrial facilities, etc ... The smog consists mostly of a mixture of sulfur dioxide and fog. Suspended droplets of sulfuric acid is formed from some of the sulfur dioxide, and a variety of suspended solid particles. The smog is common during the winter in cities like London, Chicago, Pittsburgh. When these cities burned large amounts of coal and heavy oil without the control of production, major problems were witness.

In 1952 in London, England, died 4000, as a result of this type of fog. Today, coal and heavy oil burn only in large boilers and with reasonably good control and high chimneys, so that the manufacturing smog is as big a problem. But some country such as China, Poland, Czechoslovakia, and some other Eastern European countries continue to burn large amounts of coal without using adequate gearshift.