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Open AccessArticle

Estimation of Damage Cost to Building Façades per kilo Emission of Air Pollution in Norway

NILU-Norwegian Institute for Air Research, Instituttveien 18, Box 100, NO-2027 Kjeller, Norway
Atmosphere 2020, 11(7), 686; https://doi.org/10.3390/atmos11070686
Received: 27 May 2020 / Revised: 10 June 2020 / Accepted: 23 June 2020 / Published: 29 June 2020
(This article belongs to the Section Air Quality)
This work reports marginal damage costs to façades due to air pollution exposure estimated “bottom up,” for Norway and Oslo (Norway) by the use of exposure response functions (ERFs) and impact pathway analysis from the emission to the deteriorating impact. The aim of the work was to supply cost estimates that could be compared with reported damage costs to health, agriculture, and ecosystems, and that could be used in cost-benefit analysis by environmental authorities. The marginal damage costs for cleaning, repair, and in total (cleaning + repair) were found to be, in Norway: eight, two, and 10, respectively, and for a traffic situation in Oslo: 50 (77), 50 (28), and 100 (105), (×/÷ 2.5) Euro/kg emission of PM10, SO2, and NO2 in total. For Oslo, the values represent a recorded façade materials inventory for 17–18th century buildings, and in the brackets the same façade inventory as for Norway. In total, 5–10% of the marginal damage cost was found to be due to NO2. The total marginal cost was found to be shared about equally between the impact of PM10 and SO2 in Norway (50 and 42% of the impact) and for the 17–18th century buildings in Oslo (45% and 49% of the impact), but for a similar façade materials inventory in Oslo as Norway, the total marginal cost due to PM10 was about two-thirds and that due to SO2 about one-third of the total, with about 5% of the cost still being due to NO2. The division of the costs between the separate pollutant influences on the cleaning and repair was, however, found to be significantly different in Norway and Oslo. In Norway, about 60% of the marginal cleaning cost was found to be due to PM10, 30% due to SO2, and 10% due to NO2. In Oslo, about 85% of the marginal cleaning costs were found to be due to PM10, 10% due to SO2, and 5% due to NO2. For the marginal repair cost, the opposite situation was found, in both Norway and Oslo, with 80–90% of the cost being due to SO2, 5–10% being due to PM10, and 5–10% due to NO2. As other factors than air pollution deteriorates façades and influences maintenance decisions, the expenses that can be attributed to the air pollution could be significantly lower. View Full-Text
Keywords: air pollution; marginal damage costs; atmospheric corrosion; weathering; façades; exposure response function; Oslo; Norway air pollution; marginal damage costs; atmospheric corrosion; weathering; façades; exposure response function; Oslo; Norway
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Grøntoft, T. Estimation of Damage Cost to Building Façades per kilo Emission of Air Pollution in Norway. Atmosphere 2020, 11, 686.

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