Yes, the pulp mill systems have come a long way. They're not totally closed systems. They do have input of aquatic effluent. But you have to remember cumulative impact. They've been active for a period of time, so there may be stuff that has been deposited into the sediments when they were open earlier that could still be an issue. But the contaminants you see associated with pulp mills are not the same as the contaminants you see associated with oil sands, and I didn't mean to imply they were.
On June 16th, 2009. See this statement in context.