Environmental groups in Canada, including Friends of the Earth, have filed a complaint with the country's advert watchdog over publicity for Nestlé Waters.

The campaign groups said this week that they have lodged a complaint under the Canadian Code of Advertising Standards, accusing Nestlé Waters North America of misleading the public over its claims to be eco-friendly.

Friends of the Earth said that it rejects Nestle's assertion in an advert in Canada's Globe and Mail newspaper in October that "most water bottles avoid landfill sites and are recycled".

Several analysts believe green lobby groups are mainly responsible for stalling bottled water sales across North America and the UK.

Toronto City Council this week voted to ban the sale of bottled water in all municipal premises by 2011, joining 16 other Canadian cities to have already passed a ban and handing another victory to environmental campaigners.

Nestle Waters North America says in a statement on its website: "Nestlé Waters North America realises there is more to be done, and we are leading the industry toward more responsible packaging, manufacturing, transport and water sourcing."

It claims to have reduced plastic content in its packaging by 40% in the last 15 years.