A 7-year-old chemical poisoning lawsuit ended with Monsanto Co. agreeing to pay $1.2 million to six of the 173 former workers who sued, but one who will share the award said the money doesn't make up for his cancer.

As part of the agreement announced Wednesday, Monsanto will pay $200,000 each to the six retired employees who said their exposure to a rubber additive at the company's Nitro plant gave them bladder cancer.

As part of the settlement, 127 dioxin-related claims and 34 other chemical poisoning claims will be dropped.

In addition, the St. Louis-based corporation agreed to drop its $300,000 court-costs claim against six other retired workers who unsuccessfully claimed the company recklessly exposed them to highly toxic dioxin at the plant. Monsanto had attached liens to their homes to guarantee payment.