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2011 Corporate Social Responsibility Report

Regulated Air Emissions

2010 Air Emissions
Unit: Tons per year

  Lexington Boulder Juárez
NOX 7.89* 0 0
SO2 0.096 0 0
Persistent graphic pollutants (POP) NA 0 0
Volatile Organic Compounds (VOC) 0.750 6.37 16.7
Stack and fugitive emissions NA NA 0
Particulate matter 0.596 0.06 >1

Lexmark is committed to the Montreal Protocol, an international treaty aimed at reducing the use of ozone-depleting chemicals. Lexmark prohibits the use of such chemicals in the manufacture and development of its products. The Company does use some ozone-depleting chemicals, specifically refrigerants for HVAC systems that cool our facilities. Lexmark cannot eliminate the use of refrigerants at this time since all HVAC systems require the direct or indirect use of refrigerants. Reported refrigerant emissions in 2010 resulted in an ozone depletion potential of 104 pounds of CFC-11 equivalent and we are taking steps to minimize their usage. Lexmark monitors HVAC systems for leaks using stand-alone system sensors. We also choose to purchase chillers that use environmentally preferable refrigerants. For example, in 2008, Lexmark installed chillers that use refrigerant R-134a, a hydrofluorocarbon (HFC) refrigerant, replacing previous chillers using R-11, a clorofluorocarbon (CFC) refrigerant. (CFC refrigerants have the highest Ozone Depletion Potential [ODP]. The refrigerant used in the new chiller has an ODP of zero.) As an added benefit, these new chillers have variable frequency drives, enabling less electrical demand at part load than previous chillers without frequency drives.

*Corporate facility only