The DC Department of Public Works announced today that its trash and recycling crews will begin their collections an hour earlier, at 6 am, Tuesday, August, 18 through Friday, August 21, due to a forecast of 90° and above temperatures and unhealthy air quality. Residents may put their trash and recyclables out for pick-up starting at 6 pm the night before collections so they do not have to change their morning schedules to make sure these materials are collected.  Throughout the summer, when the temperature is predicted to be 90° or higher or the Metropolitan Washington Council of Governments announces unhealthy air quality (Code Orange or Code Red days), DPW collection crews will begin their work at 6 am to avoid health or environmental issues.