Production of 2 Pesticides Is Banned in Safety Move
Environmental Protection Agency Admr Russell E Train orders immediate ban on aldrin and dieldrin, widely used pesticides, to avoid 'unreasonable human health risks'; says continued use of pesticides would constitute 'imminent hazard'; ruling does not require total ban on sales; pesticides described; decision is based on evidence that chems cause cancer in several different breeds of mice, and probably rats; Environmental Defense Fund, which has led fight to ban products, calls decision 'significant precedent in protecting humans' from toxic substances; K R Fitzsimmons, spokesman for Shell Chem Co, which is sole producer of pesticides, comments on decision; Train disputes Shell's points, contending that there are adequate substitutes for aldrin and dieldrin; Shell is expected to appeal decision; Environmental Defense Fund is also expected to appeal decision, hoping for immediate ban on sales and use of pesticides (M)
