Pollution control
Yet a report was discovered showing that Salem’s City Council was wrestling with environmental issues four decades earlier. An engineer’s detailed study that enabled the Council, in the spring of 1929, to force two companies to quit spewing soot and cinders over downtown Salem. The fall of partially burned material had been so intense that The Oregon Statesman described "soot-begrimed citizens" walking in downtown with their eyes "kept half-closed" for protection.

A wave of the environmental consciousness and concern is being developed in India mainly after the Bhopal Disaster in 1984. This book Pollution Control and Management attempts to elicit the complex problem of understanding and monitoring the pollution impact on living targets on the one hand and using cost effective remedial measures on the other. The book has been written specially to meet the challenging requirements of understanding environmental pollution.

The plant has an antiquated wet scrubber pollution control device on its power boiler. If a new paper mill was built today the plant would be required to install an electrostatic precipitator pollution control device (essential for control of fine particulates). As far as we know most plants in US burning the amount of tires that IP proposes to burn have an electrostatic precipitator pollution control device.
“It is reasonable that the effect of particulate pollution on Arctic climate may have been greater 130 years ago than it is now, because during the Industrial Revolution, technologies were dirtier than they are now,” says Garrett. “Of course, today carbon dioxide emissions are greater and have accumulated over the last century, so the warming effect due to carbon dioxide is much greater today than 100 years ago.” In fact, after fossil-fuel combustion became more efficient in the mid-1900s, the levels of particulate pollution in the Arctic dropped dramatically from levels earlier in the century. However, Garrett believes that we might be seeing another increase due to higher emissions from developing industrial countries such as China.