Basics of Industrial Hygiene

Among the various accidents in industry, we know that chemical hazards and accidents are very dangerous specially to human beings. And in most of the cases, many people are not aware about the properties of chemicals, adverse affect of these chemicals on our health. How these chemicals entered in our body? How much quantity of these chemicals is dangerous to our health? Is fatality can occur due to these chemicals? Following contents are useful to answer the above questions. Please go through it.

Industrial Hygienist must know all the things but unfortunately in most of the countries the experts like Industrial Hygienist are not available in Industries.

Definition of Industrial Hygiene,

Industrial Hygiene: Control Methods,

Substitution,

Changing the process,

isolation,

wet method,

local exhaust ventilation,

personal hygiene,

housekeeping and maintenance,

waste disposal,

special control measures.

Introduction to chemical hazards,

Dangerous properties of chemicals,

Dust, gases, fumes, mist, vapours, smoke and aerosols.

Routes of entry to human system -

1) Ingestion (Mouth), 2) Respiration (Nose) 3) Dermal (Skin),4) Eyes

Recognition, evaluation and control of basic hazards,

Concept of dose response relationship, bio-chemical action of toxic substances.

Concept of threshold limit values: TLV-

TWA (Time Weighted Average)

PEL (Permissible Exposure Limit),

STEL (Short Term Exposure Limit),

IDLH (Imminent Danger to Life and Health),

LC50 (Lethal Concentration),

LD50 (Lethal Dose)