Chemical hazards, Science

Assignment Help:

CHEMICAL HAZARDS : Chemicals are present in all laboratories. It is good to consider all chemicals toxic and flammable unless one has definite information regarding its nature. Our body also contains number of chemicals but these are very delicately controlled in terms of their nature, amount and action. Every chemical whether required in the body or not becomes harmful at a certain concentration in the body. Ideally speaking no chemical can be considered totally safe or hazard free. The nature and extent of hazard varies and more so the long time effects of many chemicals are not known. One is advised to exercise caution in handling all chemicals and minimise exposure to them.

In a laboratory, human contact with chemicals can take place in three possible ways. These are:

1.  direct contact from spills or by improper handling

2.  inhalation of the vapours, fumes or dust

3.  ingestion i.e. the oral route

Besides these, sometimes we can get affected indirectly also. For example, in case of an explosion one may get physically hurt - may be a fracture. On the other hand highly flammable liquids may catch fire and cause severe bums.

 


Related Discussions:- Chemical hazards

Define the gene activation - mechanism of hormone action, Define the Gene A...

Define the Gene Activation - Mechanism of Hormone Action A second important way by which the hormone affects cell function is gene activation. This is the mechanism of hormonal

.Cells, What is the lifespan of a simple squamous epithelial cell?

What is the lifespan of a simple squamous epithelial cell?

What divides the outer core, What divides the outer core from the mantle ab...

What divides the outer core from the mantle above it? There is a gradual transition caused by a vary in temperature and decreasing pressure..

Storage of chemicals, Storage of Chemicals : You have read about the store...

Storage of Chemicals : You have read about the stores as important structures of all the labs in previously. Storage of chemicals whether in small amount or in bulk is another imp

Define albumin in the urine, Define Albumin in the Urine Albumin in the...

Define Albumin in the Urine Albumin in the urine generally means leaking of the plasma albumin through the inflamed renal glomerulus (glomerulonephritis). It may also be presen

Nature, What is our responsibility to nature?

What is our responsibility to nature?

Water cycle, what happens if water runs out

what happens if water runs out

Define the mechanism of hormone action, Define the Mechanism of Hormone Act...

Define the Mechanism of Hormone Action Hormones affect cell function either by activating cyclic AMP (Adenosine monophosphate) mechanism or by activating genes. You may recall

Fire blankets-water extinguishers, Fire Blankets :  We have already discus...

Fire Blankets :  We have already discussed the use of fire blankets, but it is worth noting that fire blankets are now made of glass fibre instead of asbestos, and that they are u

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd