Disease costs due to outdoor ambient particulate matter pollution in Germany, 2018

INTRODUCTION: In addition to the population health effects of outdoor ambient particulate matter pollution (PM2.5), estimates of the costs related to these health impacts are increasingly requested to inform policy decision-making processes. Within the UKAGEP-project the burden of disease due to PM2.5 in Germany was monetized. METHODS: First, the disease burden attributable to PM2.5 in Germany for the year 2018 was estimated using the Environmental Burden of Disease approach. To estimate the monetary impact of PM2.5, two approaches were followed. We applied the Value of Statistical Life (VSL) approach, using a monetary value of about 6.3 (2.4-7.2) million € attached to each death case. Further, we used the Value Of a statistical Life Year (VOLY) approach, attaching a monetary value of 58,623 (36.646-146.582) € to the loss of a life year. Statistical uncertainties in both the disease burden results and the VSL and VOLY values were considered, presenting a lower and upper estimate of the overall disease costs. RESULTS: In 2018, the overall burden of disease attributable to PM2.5 was 209,702 (194,265-391,112) Disability-Adjusted Life Years. Using the VOLY-approach, this corresponds to disease costs of about 17 (7-57) billion €. In contrast, when using the VSL-approach, the estimated 15,652 (10,390-21,466) deaths attributable to PM2.5 in this year result in disease costs of about 98 (25-124) billion €. CONCLUSIONS: In comparison with other cost assessments, connecting EBD estimates with the VSL- and VOLY-approach allows to include indirect and intangible costs and not to simply focus on the disease treatment costs. The VSL-approach leads to remarkably higher costs because it does not take into account the age at the time of death and thus attaches the same monetary value to each death case. We recommend to use the VOLY-approach because it considers the remaining life expectancy. KEY MESSAGES: • Air pollution causes considerable disease costs in Germany. • We recommend to use the VOLY-approach because it considers the remaining life expectancy.