The release of the Draft screening assessment report on Nitrobacter winogradskyi ATCC 25391, Nitrobacter species 18132-6, Nitrobacter species 16969-4, Nitrosomonas europaea ATCC 25973, Nitrosomonas species 16968-3, Nitrosomonas species 18133-7, Rhodopseudomonas palustris ATCC 17001, and Rhodopseudomonas species 18136-1 was announced in the Canada Gazette, Part I, on January 12, 2013.

The draft screening assessment proposes to conclude that these eight micro-organism strains are not entering the environment in concentrations or quantities or under conditions that pose a risk to the environment or to human health, and therefore, that they do not meet the criteria set out in section 64 of the Canadian Environmental Protection Act, 1999. Under section 64, living organisms are considered harmful if they are entering or could enter the environment in quantities or concentrations or under conditions that:

• have or may have an immediate or long-term harmful effect on the environment or its biological diversity;
• constitute or may constitute a danger to the environment on which life depends; or
• constitute or may constitute a danger to human life or health in Canada.

For complete information, please consult the Chemical Substances website.

Contact: Substances Management Information Line, substances@ec.gc.ca, 1-800-567-1999 (in Canada) or 819-953-7156