Challenges of aligning district heating structures with climate goals across China's provinces.

Cost-effective decarbonization and clean heating, the major end-use of energy in China, is an urgent scientific challenge. This study proposed a generalizable framework to quantify facility-level cost-effectiveness to assess the application scope and emission reduction potential of various strategies, while evaluating their provincial compatibility with carbon neutrality goals. Our findings indicate that China's district heating system emitted 7.

Dynamic Methane Emissions from China's Fossil-Fuel and Food Systems: Socioeconomic Drivers and Policy Optimization Strategies.

In response to the 2023 "Action Plan for Methane Emission Control" in China, which mandates precise methane (CH) emission accounting, we developed a dynamic model to estimate CH emissions from fossil-fuel and food systems in China for the period 1990-2020. We also analyzed their socioeconomic drivers through the Logarithmic Mean Divisia Index (LMDI) model. Our analysis revealed an accelerated emission increase (850.

Structure-activity relationships, product species distribution and the mechanism of effect of multi-component flue gas on Hg adsorption and oxidation over CuO/ACs.

A series of Cu-doped activated cokes (CuO/ACs) were synthesized an impregnation method and applied for the removal of elemental mercury (Hg). Structure-activity relationships between Hg removal and CuO/AC surface characteristics were identified. Hg removal over CuO/AC occurs through a combination of physisorption and chemisorption and is mainly dominated by chemisorption.

Refined assessment and decomposition analysis of carbon emissions in high-energy intensive industrial sectors in China.

Carbon emissions from high-energy intensive industrial sectors are the focus of this study due to the huge energy consumption of these sectors. A refined carbon emission inventory of Chinese high-energy intensive industrial sectors in 2020 was first developed at the point source level. The results showed that coal-fired power plants (CFPPs) were the leading contributors to carbon emissions, followed by iron and steel smelting (ISS) and cement production (CMP).

Application of loofah and insects in a bio-trickling filter to relieve clogging.

Bio-trickling filters (BTFs) use an inert filler to purify pollutants making them prone to clogging due to bacterial accumulation. To investigate the performance of a non-inert filler in BTF and its cooperation with insects to relieve clogging, a vertical BTF was constructed with a loofah/Pall ring/polydimethylsiloxane composite filler and selected bacteria to purify toluene. The BTF was started up within 17 d and restarted within 3 d after starvation for 12-16 d.

Identification of NO hotspots from oversampled TROPOMI NO column based on image segmentation method.

Satellite-based measures of NO have become increasingly available for resolving the limitation on insufficient spatial and temporal coverage of ground-level monitoring networks. Oversampled NO column density can obtain more detailed features of NO column with a spatial resolution as high as 2 km × 2 km, while it is still challenging to identify hotspots of NO pollution plume in city-scale due to background interference. In this study, we proposed a method for detecting the NO hotspot grids from oversampled satellite NO column based on the image segmentation method, and identifying major source types using Term frequency-inverse document frequency (TF-IDF).

Measure-specific environmental benefits of air pollution control for coal-fired industrial boilers in China from 2015 to 2017.

From 2015 to 2017, China took strong air pollution control measures (APCMs) for coal-fired industrial boilers (CFIBs), including eliminating CFIBs, promoting clean fuels, and updating air pollution control devices (APCDs). Based on the industrial boiler's emission inventory of air pollutants, measure-specific emission reductions from 2015 to 2017 was estimated in this study. Besides, the measure-specific environmental benefits of unit emission reduction on concentration and deposition flux were systematically evaluated by WRF-CMAQ model.

Refined spatio-temporal emission assessment of Hg, As, Cd, Cr and Pb from Chinese coal-fired industrial boilers.

Coal-fired industrial boilers (CFIBs) are a significant source of trace metals (TMs) emissions, due to its large number and widespread industry application. In this study, a highly resolved of county-based atmospheric emission inventory of Hg, As, Cd, Cr and Pb for Chinese CFIBs in 2017 is established firstly based on integrated source-specific information of both activity level and air pollution control devices (APCDs) from ~61,000 CFIBs in mainland China. Our results estimated that the total emissions of Hg, As, Cd, Cr and Pb from national CFIBs in 2017 were about 25.