Hazmat crews responded to Oakland International Airport Tuesday morning after an unknown substance began off-gassing in luggage, sending some airport workers to the hospital, according to Oakland fire ...

Tear gas is a general term for chemicals that irritate the skin, lungs, eyes, and throat. There are immediate and potential long-term health effects from exposure. Tear gas can cause more severe ...

At least 10 students of the Polytechnic Ibadan in Oyo State have been hospitalised after inhaling a poisonous gas on Tuesday. Our correspondent gathered that the Oyo State government swiftly responded ...

Substances can exist in three states of matter - solid, liquid and gas. Substances can change states. To change the state of a substance energy must be transferred to, or from, the substance. Phew! On ...