Residents are recycling about the same amount of trash as last year, about 500 tons, under the town’s single-stream recycling program, according to Ed Gilbert, environmental health supervisor in the Department of Public Works. But nonrecycled solid waste dropped by 200 tons in the same period, which raises the town’s recycling rate to roughly 59 percent. Gilbert said the town had not produced so little solid-waste tonnage since World War II. The Solid Waste Advisory Committee aims to get the town to zero waste, by looking at ways to recycle organic and food wastes, and expanding the kinds of materials recycled. The town is accepting donations of old clothing at the transfer station in South Brookline as part of the household hazardous-waste drop-off 7:30 a.m. to 12:30 p.m. on Thursdays until October.