EDMONTON — An independent scientist says an extensive search of hard-to-get government records suggest Alberta's oilsands are a constant source of low-level pollution.

And Kevin Timoney, a biologist who has criticized the oilsands before, says the vast database he has compiled on the industry's environmental performance suggests the province isn't doing enough to enforce standards.

The vast database, which is to be made public tomorrow on the websites of various environmental groups, is the first time many records on emissions and pollution have been brought together in a searchable form.

Alberta Environment says it plans to create its own database this fall.

A department spokeswoman says many complaint calls about oilsands operations don't merit an enforcement response.