PCBs are highly toxic to people and the environment, and Monsanto has been dodging lawsuits for decades. PCBs were banned by the EPA in 1979. Various cities, like Portland, and even Washington state, want Monsanto to pay for cleanup costs. Monsanto didn't want to be responsible for chemicals it no longer manufactures. Monsanto requested a judge for a motion to dismiss lawsuits but the motion was denied, and the lawsuits continue.