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The Valleys will once again get the short end of the stick. The agency responsible for monitoring air quality in the Los Angeles region announced that tomorrow’s air quality will be unhealthy for sensitive individuals such as those who have heart disease, asthma or other respiratory disease. People with such conditions living or working in the Santa Clarita Valley, Pomona Valley, East San Gabriel Valley and West San Fernando Valley should minimize outdoor activities, says the South Coast Air Quality Management District and echoed by the LA County Department of Public Health, which also warned of today's and tomorrow's high heat.