Crystalline Silica

Crystalline silica is a common mineral found in the earth's crust. Materials like sand, stone, concrete and mortar contain crystalline silica. It is also used to make products such as glass, pottery, ceramics, bricks and artificial stone.

Respirable crystalline silica – very small dust particles at least 100 times smaller than ordinary sand you might find on beaches and playgrounds – is created when cutting, sawing, grinding, drilling, and crushing stone, rock, concrete, brick, block and mortar.

 

Download compliant hazardous waste labels

New hazardous waste labels are available that are compliant with the new Hazardous Waste Generator Improvements Rule regulations. These new labels are larger but can be used alone without additional labels.

The new labels include the required larger typefaces and simplified options to indicate the primary hazard. The new hazard selection options include Flammable, Toxic, Corrosive and Reactive.

 
 

Gear up for summer lab work

Summer in Seattle means hiking, biking, kayaking and ... lab work! Yes, many of us spend gorgeous summer days working in the lab. While it's fine to wear shorts, skirts, sandals or flip flops outside, wearing these items in the lab can expose you to hazards. We recommend keeping an appropriate change of clothes and shoes in the lab. Proper lab attire ensures your skin is covered and protected. Even if you aren't working with hazardous materials that day, your coworker might be, so always dress to protect yourself.