chemical safety and management

1. WHAT DIFFERENTIATE TOXIC AND NON TOXIC-dose-exposure
2. CAS-chemical abstract services system-A SERIAL NUMBER OF A CHEMICAL
3. TOXIC-can be naturally / artificially
4. CADMIUM(Cd)-a type of neuphrotoxin-can damage kidney
5. COMPUTER MODELLING-experiment in lab+dat in software=prediction&equation
6. the level of toxicity that we usually know usually put in alittle low level that accurate dose permitted-AS A PREVENTIVE ACTION
7. INHALATION IS THE EASIEST WAY FOR CHEMICAL ENTER TO OUR BODY- LARGE SURFACE AREA IN LUNG
8. TRADITIONAL METHOD TO DILUTE GOLD-USE MERCURY
9. LD50-lethal dose50-dose that kill50%test animal-the smaller ld50,the more dangerous,more toxic
10. CHEMICAL THAT IS FAT-SOLUBLE WILL RETAIN IN OUR BODY LONGER THAN WATER SOLUBLE SUBSTANCE AND TEND TO BE DANGEROUS
11. INJURY-PHYSICAL(burns,inflammation of respiratory tract) -PSYCHOLOGICAL(drug abuse and hallucination) -PHYSIOLOGICAL
12. GROUP 1 AND 2 CHEMICAL IN PERIODIC TABLE ARE VERY REACTIVE WHEN CONTACT WITH WATER-can cause explosion
13. LC50-lethal concentration50-coincentration of chemical in environment that produce 50% death in exposed population in a time frame
14. EUPHORIA-extremely happy