National Air Quality Awareness Week in USA
National Air Quality Awareness Week in USA is held on May 6. Starts on the first Monday in May. This event in the first decade of the month May is annual. 
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The National Weather Service (NWS), the U.S. Environmental Protection Agency (EPA), and the U.S. Centers for Disease Control and Prevention urge Americans to be aware of “What’s your Air Quality IQ?” during Air Quality Awareness Week.
Similar holidays and events, festivals and interesting facts
World Hand Hygiene Day on May 5
World Pulmonary Hypertension Day on May 5
International Handwashing Day on May 5 (since 2009, when the WHO Patient Safety Program launched a new initiative called Save Lives: Wash Hands);
Orthotist and Prosthetist Day in El Salvador on May 5 (Día del ortesista y protesista);
Celiac Awareness Day in Argentina on May 5
Mental Health Week in Canada on May 6 (Held in the first full week of May);
National Nursing Week in Canada on May 6 (Held from Monday to Sunday of the same week in which the date May 12 is located);
Sun Awareness Week in Canada on May 6 (Held from the first Monday in May);
Kinesiologist's Day in Chile on May 6
National Child and Youth Mental Health Day in Canada on May 7
MDS Coordinator Day in USA on May 7