He wanted me to use words like polyvinyl chloride, which doesn't really work in voice balloons very well.

Further information would also be sought on some other specific issues such as blast furnaces, cupolas used in foundries, smaller scale facilities and polyvinyl chlorides in lead batteries.

At the Mayak Industrial Reprocessing Complex in Russia s southern Urals, a storage tank holding nitrate acetate salts exploded in 1957, releasing a massive amount of radioactive material over 20,000 square kilometers, forcing the evacuation of 272,000 people. In September 1994, an explosion at Indonesia s Serpong research reactor was triggered by the ignition of methane gas that had seeped from a storage room and exploded when a worker lit a cigarette.