Residents may drop off household hazardous material at the Northwest Citizens' Convenience Center, 2840 Sisson Street, April 14 and 15 from 9:00 to 5:00 and then on First Friday and Saturday from May to October. This is an opportunity for Baltimore City residents to drop off items such as oil-based paints, pesticides, herbicides, car and household batteries, drain...

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Start time at discretion of the city. 4-hour duration.