Evolution of the life cycle primary PM2.5 emissions in globalized production systems.

Evolution of the life cycle primary PM2.5 emissions in globalized production systems.
Environ Int. 2019 Jul 29;131:104996
Authors: Zhang H, Li R, Chen B, Lin H, Zhang Q, Liu M, Chen L, Wang X
Abstract
Production system-related air pollution emissions are dominant components in global emission reduction targets and in realizing relevant sustainable development goals (SDGs). To better understand the air pollution emissions induced by globalized production systems through a life cycle perspective, environmental extended multiregional input-output (EE-MRIO) analysis was applied to calculate the primary product-based emissions and the final product-based emissions embodied in the global production systems. Combined with two types of linkage analysis, named the hypothetical extraction method (HEM) and the emissions pure backward linkage (EPBL), emissions were analysed at three scopes at the sector level from macro sector linkage perspectives. An illustrative analysis was presented based on the global EXIOBASE MRIO database and primary PM2.5 emissions from 1995 to 2011. The results show that from 1995 to 2011, the primary PM2.5 emissions in the global production systems increased by 35%. In 2011, China's production system generated the highest primary product-based and final product-based primary PM2.5 emissions, which accounted for 30.7% and 29.6% of the global total, respectively. The emission flows balance between primary product-based e...

Source: Environment International - July 28, 2019 Category: Environmental Health Authors: Zhang H, Li R, Chen B, Lin H, Zhang Q, Liu M, Chen L, Wang X Tags: Environ Int Source Type: research