Type of toxicity

a) Acute – usually immediate, obvious, reversible

b)Delayed – “chronic”, usually from repeated doses

c) Allergic – immune system response to chemicals

a) Acute effects:

I) Oral – examples: burned mouth, sore throat, upset stomach

ii) Inhalation – examples: pain or tightness in chest

iii) Dermal (skin) – examples: itching, blisters, rash

iv) Ocular (eyes) – examples: irritation, temporary or permanent blindness

b) Delayed (Chronic) Effects:

i)May appear long after exposure:

ii) Tumors

iii) Gene effects

iv) Miscarriage

v) Impotence

vi) Birth defects

vii) Infertility

viii) Sterility

viiii) Nervous system disorders

Types of Allergic Effects

a) Systemic – as asthma, shock

b) Skin irritation – rash, blisters, sores

c) Eye and nose – itchy/watery eyes, sneezing

d) Will occur with every exposure to the offending chemical