Zhang, J;
Shen, H;
Chen, Y;
Meng, J;
Li, J;
He, J;
Guo, P;
... Tao, S; + view all
(2023)
Iron and Steel Industry Emissions: A Global Analysis of Trends and Drivers.
Environmental Science and Technology
, 57
(43)
pp. 16477-16488.
10.1021/acs.est.3c05474.
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Abstract
The iron and steel industry (ISI) is important for socio-economic progress but emits greenhouse gases and air pollutants detrimental to climate and human health. Understanding its historical emission trends and drivers is crucial for future warming and pollution interventions. Here, we offer an exhaustive analysis of global ISI emissions over the past 60 years, forecasting up to 2050. We evaluate emissions of carbon dioxide and conventional and unconventional air pollutants, including heavy metals and polychlorinated dibenzodioxins and dibenzofurans. Based on this newly established inventory, we dissect the determinants of past emission trends and future trajectories. Results show varied trends for different pollutants. Specifically, PM2.5 emissions decreased consistently during the period 1970 to 2000, attributed to adoption of advanced production technologies. Conversely, NOx and SO2 began declining recently due to stringent controls in major contributors such as China, a trend expected to persist. Currently, end-of-pipe abatement technologies are key to PM2.5 reduction, whereas process modifications are central to CO2 mitigation. Projections suggest that by 2050, developing nations (excluding China) will contribute 52-54% of global ISI PM2.5 emissions, a rise from 29% in 2019. Long-term emission curtailment will necessitate the innovation and widespread adoption of new production and abatement technologies in emerging economies worldwide.
| Type: | Article |
|---|---|
| Title: | Iron and Steel Industry Emissions: A Global Analysis of Trends and Drivers |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/acs.est.3c05474 |
| Publisher version: | https://doi.org/10.1021/acs.est.3c05474 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | air pollutants, driving forces, emission inventory, greenhouse gases, historical trends, iron and steel industry, Humans, Air Pollution, Iron, Particulate Matter, Steel, Air Pollutants, China |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10183795 |
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