### substance | waste | pollutant:

Airborne pollutant
* accumulate in Arctic waters and become concentrated in the food chain.
* are either particle matter or gases.
* can also land on the roof and end up in the runoff
  - cause irritation of eyes, nose and throat
  - compromise the health of a building s inhabitants

Chemical pollutant
* Many chemical pollutants mimic human hormones.
* Some chemical pollutants are structurally similar to hormones and thus can mimic hormone signals
  - enter water

Common pollutant
* Some common pollutants eat away stone, damaging buildings, monuments and statues.
* can enter our houses through air leaks in the structure.
* undermine masculinity.

Conventional pollutant
* are solid particles and matter found in our water.
* cause a wide variety of environmental problems.

Different pollutant
* come from urban and agricultural areas.
* harm the brain differently.

Environmental pollutant
* are a factor in the declining numbers of common snapping turtles
  - also a major risk
* cause a potential hazard for survival in free-living animal populations.

### substance | waste | pollutant:

Halon
* are another group of chemicals which are just as important
  - powerful ozone depleter used in fire extinguishers
  - fluorocarbons that contain bromine
* are man-made brominated hydrocarbons that act as very effective fire extinguishants
  - one of the most ozone-damaging substances in use today
  - organic compounds that are similar to CFCs
* incorporate bromine instead of chlorine.
* is an organic compound
* release bromine atoms which are even more potent ozone destroyers.
* stop the chemical reaction necessary for a fire to continue.

Indoor pollutant
* exist in all homes.
* pose significant risks.

Organic pollutant
* Most organic pollutants find in pesticide.
* Some organic pollutants find in surround water

Other air pollutant
* contain dioxide
  - sulfur dioxide
* have impact
  - indirect impact

Other pollutant
* enter streams.
* have effects
  - negative effects

Persistent pollutant
* Most persistent pollutants find in pesticide.
* Some persistent pollutants build up in the fatty tissue of plants, animals, and humans.
* can spread throughout the environment through the use of technology.

Primary pollutant
* are pollutants that are put directly into the air by humans or natural sources.
* associated with point sources include nitrogen, phosphorus, and organic wastes.
+ Air pollution, Types of air pollution
  * Air pollutions are usually described as either 'primary pollutants' or 'secondary pollutants'. Primary pollutants are pollutants that are put directly into the air by humans or natural sources.

### substance | waste | pollutant:

Secondary pollutant
* Many secondary pollutants are made when a primary pollutant reacts with sunlight.
* are formed when primary pollutants undergo chemical changes in the atmosphere.
* form from chemically altered primary pollutants, as in the case of ozone.
+ Air pollution, Types of air pollution
  * Secondary pollutants are pollutants that are made from chemical reactions when pollutants mix with other primary pollutants or natural substances like water vapor. Many secondary pollutants are made when a primary pollutant reacts with sunlight. Ozone and smog are secondary pollutants. Ozone is a gas that is helpful and takes in harmful rays from the sun. When it is near the ground, though, ozone is a dangerous pollutant that influences the health of all organisms.

Soil pollutant
* are harmful because they can be leached from the soil and deposited in water.
* include chemicals
  - solid waste

Toxic pollutant
* Most toxic pollutants cause effects.
* come from two main sources, agriculture and industry.
* permeate the greenhouse.

Reactive waste
* are unstable under normal conditions.
* can react with air, water or other substances to cause rapid heating or explosions.