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Main Sub-damage Categories
Fig. 7. Relative contributions to the four main sub-damage categories for each subsystem Climate change on human health The transportation stage was responsible for most of the CCH contribution (approximately 46%), as is shown in Fig. 7. The HWC and heating system contributed 25% and 7% to the impact, respectively. The combustion of fossil fuels to produce complete heat and electricity led to CO 2 and CH 4 emissions (approximately 16%). Fossil depletion Transportation was responsible for most of the FD contribution (33%), followed by wood materials production (19%) and electricity (10%). The cogeneration unit, including metals, plastics, and adhesives, required in the packaging stage contributed approximately 23% to this impact category. Human toxicity A high percentage of the total impact of the ecotoxicity potentials was linked to transportation activities (60%). The wood materials production was another hot spot with a contribution of 12% because of the wood fiber and auxiliary chemical materials required for HWC production. Particulate matter formation The wood materials production had the largest contribution to this impact category (32%), and particulate matter was mainly emitted during HWC manufacturing (35%), followed by electricity production (25%) and heating (20%). The fiber preparation and board finishing of wood materials production are the main sector in the pollution of particulate matters (Kouchaki-Penchah et al. 2016). The fine particulate matter (PM 10 and PM 2.5 ) from the PMF category is related to respiratory problems in humans. Most of the major cities in China are afflicted by principal urban pollutants, which includes SO 2 and NO x (Yao et al. 2009, 2010). Specifically, PM 2.5 , the pollutant with the highest amount in the region, adversely affects the Northern region of China (Song et al. 2016).
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Li et al . (2019 ). “Wardrobe case study in China,” B io R esources 14(2), 2740-2758.
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