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31 Cards in this Set

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Infectious

Caused by microorganisms. Not all contagious

Contagious

Transmitted

Acute effects

Present immediately

Chronic effects

Can be yrs

Acute exposure

Large concentration effects immediate or long term

Chronic

Repeated exposure low levels of concentration over several days or longer

3 types of stress

Thermal


Mechanical


Chemical

Thermal stress

Results from radiated, convected, conducted or direct heat exposure

Mechanical stress

From dominant physical force

Chemical stress

Result of rxn or interaction, may change of contents or container

5 ways of breach

Disintegration


Run-away cracking


Closures opening up


Punctures


Splits/tears

Disintegration breach

Fails due to rust/corrosion

Run-away cracking

Crack grows

Closures opening up

Incorrect op of closing mechanism

Punctures

Mechanical stressors, container HIT in By another object

Splits/Tears

From mechanical stressor, container hit in sliding motion from another object

4 ways containers release contents

Detonation


Violent Rupture


Rapid Relief


Spills & Leaks

Detonation

Explosion of contents


Unstable molecules use energy to instantaneously split into small pieceslg 🔀amts of heat♨️

Violent rupture

NOT an explosion


Run-away cracking


Rapid acceleration polymerization


Oxidizing hazmat rxns

Rapid relief

Pressure ruptures (over pressured/safety valve fails)

Spills & leaks

Gradual flow through openings


Tears/splits


Punctures

Front (Term)

Hemisphere- semicircular/dome shaped still in contact with ground

Dispersion patterns

Hemisphere


Cloud


Plume


Cone


Stream


Pool


Irregular

Front (Term)

Cloud-ball shaped pattern mat. risen above ground

Front (Term)

Plume-irregular shape where wind influence downrange course from poc

Front (Term)

Cone-🔻shape w/ wide base downrange

Front (Term)

Stream- liquid mat flowing generally consistent for length of spill

Front (Term)

Pool- liquids equally shaped ⭕️ in all directions & all areas

Front (Term)

Irregular- no definitive shape

Factors influencing length of time (dispersion/exposure)

Quantity


Method


Speed of release

Time frames

Short-term: min&hrs


✔️low haz


✔️quick control


✔️short release



Medium term: Days Wks & Mnths


✔️mod-high haz


✔️exposure contamination occurred


✔️Decon lengthy/ difficult


✔️ mod cleanup required



Long term: yrs & generations


Not decades


✔️ high haz


✔️ heavy contam.


✔️ Decon lengthy/diff.


✔️extensive cleanup