It is caused by chemicals, and poisonous gasses.
Chemical Hazard is the danger caused by chemicals to the environment and people. A chemical hazard arises from contamination with harmful or potentially harmful chemicals.
pollution
Using clean equipment when working with lab chemicals is important to prevent contamination of the chemicals or the experiment. Contamination can alter the results of the experiment, leading to inaccurate data. It can also be dangerous if incompatible chemicals react with residues left on the equipment.
Dept of health does this test with different chemicals
contamination caused by unwanted matter.
Soil can be damaged or lost through erosion caused by wind or water, depletion of nutrients due to unsustainable farming practices, and contamination from pollutants such as chemicals or heavy metals.
A conclusion for soil contamination is that it is caused mostly by industrial substances being put into the soil. Soil is contaminated by chemicals and other altering substances that are improperly disposed of.
Soil contamination can be caused by various activities such as industrial operations, mining, agricultural practices, improper waste disposal, and accidental chemical spills. These activities introduce harmful substances like heavy metals, pesticides, hydrocarbons, and chemicals into the soil, which can disrupt ecosystem functions and harm human health.
Clean to avoid contamination and dry to prevent introduction of water, especially when using dehydrated chemicals and before weighing them.
hipatitis is a disease caused by:food,contamination or i dont know
Water.
This standard procedure -dry and clean spatula in scooping solid chemicals from reagent bottle- should prevent contamination of - and exposure to dirt and humidity to - the other chemical reagents.