Greenpeace Voices Alarm At Microplastics In Streams

Environmental group, Greenpeace, has expressed alarm at finding microplastics in half of the eight popular countryside streams it tested, saying the water there should be clear of pollutants as there is no industry nearby.

“Even finding one microplastic particle in our sample, it is unbelievable”, campaigner Leanne Tam said. “We didn’t expect to see any microplastics in our sample, because in our countryside... there are no industrial or commercial activities."

Greenpeace said 24 pieces of polypropylene (PP) were found in a litre of water collected from Tai Po Ng Tung Chai and Tai Cho Stream at Tai Mo Shan.

PP is commonly found in disposable packaging, tableware products and boxes.

Tam suspects the surge in local visitors to the countryside during the pandemic could be to blame.

After finding tainted samples in a Tai Tam waterfall, the group said particles might pollute drinking water, if the water flows into a reservoir - or enter the food chain, through animals or micro-organisms.

Tam called on the Water Supplies Department (WSD) to conduct regular tests in Hong Kong's 17 reservoirs for microplastics.

In response to RTHK’s inquiry, the WSD said testing for microplastics was not part of the World Health Organisation (WHO)’s guideline for drinking water quality, but given increasing concerns over microplastics pollution, the Hong Kong government has added it to an observation list in April this year.

The statement said WHO recognises that the water treatment process adopted here can filter out particulates even smaller than microplastics.

The department added it would closely monitor relevant international scientific research and developments.

However, Tam said she thought corporate entities and supermarkets should bear most of the responsibility.

“They are providing goods for what we buy, what we use every day. They can reduce plastic packaging, and give options to sell without any packaging,” she said.