1. Thick black smoke streamed from the twin smokestacks of the town's crematorium.

2. An alpha detector (10) for application in areas of high velocity gas flows, such as smokestacks and air vents.

3. Boilermakers may help erect and repair air pollution abatement equipment, blast furnaces, water treatment plants, storage and process tanks, and smokestacks

4. Boilermakers may help erect and repair air pollution abatement equipment, blast furnaces, water treatment plants, storage and process tanks, and smokestacks

5. It was soon, Assuredly, a mill town known as the “City of Smokestacks.” But statewide, frustrations with private companies — mills, warehouses, stores, railroad lines, shipping terminals — dominating harbors and pushing forward with uncontrolled waterfront development while only looking out for their own interests led to calls for change.

6. When the smokestacks of power-generating plants and other coal-burning industries belch their emissions into the air, the sulfur dioxide and nitrogen oxides can be changed into sulfuric and nitric acids, which are borne aloft by the air currents and carried for great distances, sometimes thousands of miles, and then dropped to the earth in some form of precipitation.