Download Air Pollution 1 - NserekoEnvironmentalScience

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts
no text concepts found
Transcript
Air Pollution 1. PowerPoint Notes
Clean air consists of:
_______________
_______________
Very small amounts of argon, carbon dioxide and water vapor.
We breathe ______________ gallons of air each day.
When harmful substances reach unhealthy levels we call this “air pollution.”
Air Pollution
Most air pollution is ___________________
Natural air pollution includes ____________________, dust, pollen, and spores.
______________________: one that is put directly into the air by human activity ex. soot
__________________________: forms when two primary pollutants react in air, or when
one combines with a naturally occurring substance ex. ground level ozone
Carbon monoxide (CO)
Odorless, colorless, poisonous
Produced by the ________________________________________________
Sources include __________________, burning propane or natural gas indoors,
_________________________________
_____________ Americans die each year from accidental CO poisoning
Affects blood’s ability to ______________________
What are the main sources of CO in Iowa?
Nitrogen Oxides (NOX)
From____________________, _________________________________, industry
Makes your body vulnerable to ____________________________and cancer
What are the main sources of NOX in Iowa?
Sulfur Dioxide (SO2)
Produced by interactions between ______________and ___________________
Comes from burning of __________________________which contain sulfur
Contributes to _______________________as sulfuric acid
Harms plants and irritates human respiratory system
What are the main sources of SO2 in Iowa?
Volatile Organic Compounds (VOC)
Organic compounds that easily become __________________
________________are a major source, also found in household products (________,
varnish, dry cleaned clothing, air freshener)
Contribute to ____________formation
Cause serious health problems including cancer
What are the main sources of VOC in Iowa?
Particulate Matter (PM)
Tiny particles of ____________or ____________
Fine particles come from___________, coal burning power plants. Coarse particles come
from cement plants, mining and _____________Can form clouds that_____________________.
Can cause a variety of respiratory problems and cancer.
What are the main sources of PM in Iowa?
Secondary Pollutants
Ozone (O3) is a gas composed of ___________oxygen atoms.
It is not usually emitted directly into the air, but at ground-level is created by a
________________________between oxides of nitrogen (NOx) and volatile organic
compounds (VOC) in the presence of____________.
Ozone has the same chemical structure whether it occurs miles above the earth or at
ground-level and can be "good" or "bad," depending on its location in the atmosphere.
Ozone: _________________________________
High Altitude ________________________from harmful UV rays.
Man-made chemicals, such as___________, have depleted our ozone layer.
Since ____________ we have practically eliminated the use of ozone depleting
substances
Our ozone layer is _____________
Health Effects of Ground level ozone
Airway irritation, ____________, and __________when taking a deep breath;
_______________and breathing difficulties during exercise or outdoor activities;
_______________, which is much like a sunburn on the skin;
Aggravation of _______________and increased susceptibility to respiratory illnesses like
pneumonia and bronchitis
Permanent ______________________with repeated exposures.