The National Weather Service has issued an Extreme Heat Warning for Cochise, Gila, Graham, Greenlee, Pima, Pinal, and Santa Cruz counties June 23-24. La Paz, Maricopa, and Yuma counties, June 24-25. A heat warning is ongoing for Coconino county through June 23. Daytime highs are expected to reach up to 114°F. Drink water, limit your time in the heat, and check on neighbors and family members. Visit air-conditioned public spaces like malls, libraries, or community centers to stay cool. Stay cool, stay hydrated, and stay informed.

Chemistry

Chemistry

The Bureau of State Laboratory Services exists for the protection of the health of all Arizonans

State Laboratory Research Photo