Ch. 14 Env Haz Pt. 3 Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Term | Definition |
How we evaluate chemical hazards | 1. Toxicology |
Toxicology | Science that studies the harmful effects of chemicals on living organism's and ecosystems. |
Toxicity | Quantitive measure of how harmful a substance is. |
Toxicity Depending Factors | 1. Dosage (quantity) 2. Genetic makeup of person exposed 3. Water Solubility 4. Fat Solubility 5. Resistance to breakdown 6. Bio-accumlation in body tissue & organs (liver) 7. Food chain accumulation 8. Chemical Interactions |
Synergy | Cumulative effects of toxic substances. Combined effects is grater than the sum of individual components. |
Acute Toxicity | Rapid, short lived effects. |
Chronic Toxicity | Permeant, long lasting effects. |
Smoking | 1 death per 6 seconds worldwide US, 1/2 million deaths/yr Lead to the production of 25 illness: 1. Heart Disease 2. Lung Cancer 3. Stroke 3 Respiratory Diseases: 1. Bronchitis 2. COPD 3. Emphysema Leading cause of preventable death worldwide. |
Emphysema | Effects lung's air sacks (alveoli) |
Risks with smoking | Passive Smoking |
Passive Smoking | Around someone who smokes. 30% higher risk of heart disease & lung cancer |
Created by:
ginganinjaem
Popular Science sets