Shell chemical company Pesticide plant at Rocky Mountain Arsenal may be the source of a serious industrial health problem. Straight Creek Journal S 22, 1977 p. l, 4 Chemical pesticide linked to male sterility in Shell Co. employees. RMN O 9, 1977 p.5,58 Pesticide produced in Denver plant is linked to sterility. Post N 1, 1977 p.3 Use of benzene not found harmful to Shell employees. Post Jy 31, 1978 p.31