occupational hygein - new Flashcards
def
focus on the interaction between organism and working environment. the central activities in occupational medicine are recognition, prevention and diagnosis of work related health conditions.
4 basic princies
- anticipate the problem
2.recognition
3.valuation - control
what soiety r we in
post industrialised society where most of population is egaged in public sector , small propetion is in indsuty25% and agroculture 3-4%
occupational health vs occupational safety
safety deals with accidents and their prevention and health deals with occupational diseases and their prevention
examples of the time variation for occupational diseases
c0- minutes
solvent intotexication - hours
noise - yeats
metal - days
what category would a pestcided fall into
it can be a chemical
bioligcal (virus, bacteria)
it can be a disinfectant
classifcation of pesticides
- by usage
- by chemical type- very good for analytical purposes
- classification by hazard - this is what is recommended by IPCS international programme on chemical safety
toxicity vs hazard
T: innate capacity of a substance to cause damage . toxicity is dose related , so the more toxic a substance is the smaller the dose needed
H: is based on the toxicity of the compound and its formulation. HAZARD IS THE RISK OF POISIONING
hazard = toxicity x exposure
HEALTH EFFECTS OF PESTSICIDES
there have been many studies espciallly on farmers
associated with non hodgkin, leukemia, prostate cancer mm have been found
chronic issues such as respiratory problems, memory disorders, skin conditions , miscarriages and birth defects
OP poisioning
headache
vommiintg
foaming of the mourh
what do we use to compare toxicity of pestcides
LD 50 values, - the individual dose required to kill 50% of a population of test animals
