As an industry largely based on paper, the industry produces around 400 million tons of paper per year (Environmental Paper Network, 2018). Additionally, take into account the ink and water that goes along with the processing of said paper in factories, offices, and even our own homes. The use of such a volume of natural resources, combined with the energy needed to process it makes the printing industry “the fourth largest user of industrial energy worldwide” (Laurijssen, 2013). Naturally, these processes are bound to affect the environment.
One result of this energy usage from printing plants and paper mills are volatile organic compounds (VOCs), which are chemicals that evaporate at room temperature. VOCs in small amounts may be found in our homes, which can “irritate the eyes, throat, and nose, as well as cause headaches, dizziness, and potentially lead to memory loss or visual impairment” (Lafond, n.d). However, VOCs emitted at larger amounts have an effect not just us, but our environment as well. According to the Government of Canada, VOCs from the printing industry are “one of the principal stationary sources of volatile organic compound”, which stems from the use of solvents in ink and cleaning (Environment Canada, 2016). VOCs on this scale are detrimental to our environment, contributing to acid rain and the formation of ozone. Acid rain can cause damage to ecosystems, seeping into the ground destroying nutrients, and releasing aluminum into water streams, making them toxic. Ozone is a pollutant that when at ground level, is hazardous to our health and can cause smog.
Another byproduct of the printing industry is effluent, also known as wastewater. Water is essential to printing, as ink is oil-based and water repels ink, which is how offset lithographic printing, the most common form of large scale printing today works. This water comes in contact with the ink, contaminating it. Water is also required to clean printing presses. Disposal of the wastewater and various solvents and cleansers is a procedure where the utmost care must be taken, as the pollutants from the effluent can quickly seep in and harm the surrounding environment. Waste management is necessary to safely dispose of the various chemicals used in printing processes. Recycling these chemicals instead of disposing of it saves the environmental and financial costs of producing these chemicals.
Having up to date technology is a crucial aspect of being sustainable in the print industry. For example, a printer that still uses traditional inks when vegetable-based inks are available, or printers that dispose of their solvents instead of recovering and recycling it are leaving behind a larger carbon footprint. Understanding and applying the latest tactics are key when it comes to reducing pollution and being sustainable in the printing industry.
References
Environment Canada. (2016). Printing industry and volatile organic compounds. Retrieved from https://www.canada.ca/en/environment-climate-change/services/managing-pollution/sources-industry/volatile-organic-compounds-consumer-commercial/printing.html
Lafond, A. (n.d.). How does volatile organic compounds concentration affect the environment. Retrieved from Foobot website: https://foobot.io/guides/how-does-volatile-organic-compounds-affect-the-environment.php
Laurijssen, J. (2013). Energy use in the paper industry. Retrieved from https://vnp.nl/wp-content/uploads/2014/01/8-Energy-use-in-the-paper-industry.-An-assessment-of-improvement-potentials-at-different-levels.pdf
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