### condition | pollution:

Light pollution
* Most light pollution has negative impact.
* Some light pollution affects women.
* Some light pollution increases gases
  - greenhouse gases
* Some light pollution is faced by astronomers
  - optical astronomers
* adds to the stress of daily life as much as noise pollution.
* bane for film astrophotographers.
* causes major problems with astronomy.
* comes from sources of artificial light such as streetlights and shopping malls.
* general glow in the night sky hanging over most cities.
* has impact
* is also a sign of waste.
* is an increasing problem for observatories everywhere
  - issue that affects everything on Earth
  - equivalent to being subjected to loud noise on a continual basis
  - everyone's concern
  - negligible in other bands, and it is decreasing
  - now a problem for virtually every student or amateur astronomer
  - only a problem because the light is scattered by the atmosphere
  - similar to noise pollution, or obnoxious odors
* is the bane of all night watchers
  - costs of one person's good foisted upon many others
  - emission of artificial light into areas where it is unneeded or unwanted
  - one form of pollution whose solution immediately saves money
  - urban sky glow above any city, hiding our view of the universe
  - wasted light from street lights that goes to the sides and up
  - to comets like carbon monoxide is to mammals
  - very detrimental to deep sky observing
  - virtually nonexistent
  - worst in the city and near cities
* leaves only the moon, planets and brightest of stars visible to the naked eye.
* major problem worldwide, and attention is now beginning to be brought to it.
* makes the night sky unduly bright and can prevent stars from being seen.
* occurs due to prominent excess illumination of an area.
* problem - used screens to block adjacent tubes.
* produces disorientation and leads to the deaths of various reptiles and amphibians.
* reduces the suitable area of feeding habitat for owls and other night-hunting birds.
* special threat to astronomy.
* worldwide problem which affects almost the entire human population.

Marine pollution
* Most marine pollution threatens life.
* affects both human and animal communities.
* cans have impact
  - serious impact
* generic term for the harmful entry into the ocean of chemicals or particles.
* is associated in the public mind with pollution from oil cargoes.
* long term threat.

Mercury pollution
* Most mercury pollution is released into the air.
* comes from coal-fired power plants and solid and medical waste incinerators.
* key piece of unfinished business in cleaning up our environment.
* particular problem in Bellingham Bay.
* serious problem for human health and the environment.

Nitrate pollution
* can cause disease in humans and livestock.
* is caused by fertilizers, septic tanks and animal wastes.

### condition | pollution:

Noise pollution
* can be a substantial issue with air-cooled chillers
  - overwhelming, and diminishes quality of life
  - cause ear problems or even permanent deafness , especially to older people
  - have tremendous psychological effects on people
  - put the health of community members at risk
* creates problems.
* disrupts the direction-finding abilities and reproductive systems of river dolphins.
* is also a factor in the quality of life
  - an intrusion into the commons
  - another problem - whales use sound primarily to observe their world
  - documented to be the worst thing for stress and sickness
  - one of the causes of headache so stay away from high sound
  - still an issue, particularly in built-up areas
* major concern in today's market.
* plagues many cities and national parks.
+ Pollution, Noise pollution
  * The harmful noises in the environment, such as the sound of cars, loud speakers, etc. Noise pollution can cause ear problems or even permanent deafness, especially to older people. Noise pollution can be the unwanted sound present in the atmosphere.