The suppliers of major clothing brands, including sportswear giants Adidas, Nike and Li Ning, are polluting rivers part of the Yangtze and Pearl River deltas in China, said Greenpeace in its report on Wednesday.

Hazardous chemicals with hormone-disrupting properties have been found in wastewater samples from two factory complexes that supply these and other global fashion brands.

Laboratory testing found a cocktail of hazardous chemicals, including nonylphenols – a subset of alkylphenols – and perfluorinated chemicals (PFCs), in wastewater samples from the two major suppliers, Youngor Textile Complex on the Yangtze River Delta and Well Dyeing Factory on the Pearl River Delta.

Alkylphenols and PFCs have hormone-disrupting properties and can be hazardous even at low levels. They are persistent in the environment, can move up through the food chain, and can travel great distances via air and water currents.

Because of this, alkylphenols and some PFCs are restricted by the EU and international conventions. Nevertheless, they are still widely used by the textiles industry in developing countries such as China, where they have yet to be restricted.

Greenpeace is challenging the clothing brands named in the report to eliminate the use and discharge of hazardous chemicals from their supply chain and products.

"We are calling on trendsetting brands that have major influence on their supply chains, such as Adidas, Nike and Li Ning, to take the lead," said Greenpeace Toxics Campaigner Li Yifang, "These brands have the ability and responsibility to work with their suppliers to provide products that do not irrevocably damage the environment and public health."