5.3 The emissions from the European production facilities Our emissions to air are largely due to the use of fossil fuels (NOx, SOx). Since the mag nitude of these emissions to air is directly proportional to the consumption of heat, the quantity of heat that is generated is indicative of the levels of the emissions. In 1999 we were able to achieve a further reduction in the emissions to air as a result of the conversion to cleaner fuels such as natural gas and the implementation of a water- injection system in the gas turbines of the Zoeterwoude (the Netherlands) brewery. This resulted in an 8% reduction of the brewery's total emission of NOx from 95.6 ton nes to 87.8 tonnes, stabilising the SOx emission on a level of 0.3 tonnes. In some cases in the malting plants sulphur dioxide is added to the air which dries the malt. This is done to prevent the formation of undesirable compounds from nitrogen oxides and amino acids in the malt. A minor fraction of the added S02 will be discharged to the air via the exhaust system. The emission of C02 as a result of the use of fossil fuels is not included in this report due to the wide range of different power stations. Total NOx emission all production units breweries maltings soft drinks 1999 1998 1997 kg NOx/year 0 413,314 38,690 6,363 501,717 37,575 3,462 354,150 38,726 3,454 200,000 400,000 600,000 Total SOx emission all production units kg SOx/year 0 1999 breweries maltings soft drinks EUROPEAN ENVIRONMENTAL PERFORMANCE 45

Jaarverslagen en Personeelsbladen Heineken

Heineken - Milieuverslag | 1998 | | pagina 47