Automatic covers on bins for wet trash are being suggested by local political adviser Wang Yan.

Bins for dry, wet, recyclable and hazardous waste in many residential complexes in Shanghai remain open during disposal time, said Wang. The smell of wet, or household food waste, stinks, particularly in summer.

In summer, the odor can be smelt far from the bins, andflies are attracted. On rainy days, wet garbage can spill out, polluting the environment.

Wet trash is different from other types of waste as it will deteriorate and degenerate, polluting the environment, thus it should be collected differently.

The proposal suggested a cover which will close after disposal and open before disposal.

It could also eliminate people’s concerns about getting their hands dirty.