pulp is " brightened as opposed to bleached, using less toxic chemicals than are needed for chemical pulps. Sulfur dioxide is of particular concern because it is water-soluble and is a major cause of acid rain. Bioenergy accounted for 56 of forest industry energy use in 2012, up from 49 in 2000. Joint publication of Duke University, Environmental Defense Fund, Johnson physic article essay Johnson, McDonald's, Prudential Insurance Company of America and Time Inc.
Environment and Climate Change Canada (2015). "National Association of Printing Ink Manufacturers - Metals in Inks". Retrieved b 1 dead link a b c "EPA. 8 9 In 2015, the industry released 174,000 tonnes of emissions to air, water and land (or.3) out of a total.3 million tonnes of emissions released by all industries in Canada. 38 However, there has been disagreement about the comparative environmental effects of ECF and TCF bleaching. The regulations, also known as "Maximum Achievable Control Technology" (mact) regulations, apply to mills that use chemical pulping and call george orwell short stories and essays for hazardous air pollutants to be reduced by 59 and for volatile organic carbon and particulate matter to be reduced by 49 and 37, respectively. Archived from the original on January 16, 2008.