Atmospheric Emission Characteristics and Control Policies of Anthropogenic VOCs from Industrial Sources in Yangtze River Delta Region, China

Abstract

A bottom-up inventory of atmospheric emissions of industrial MNVOCs in Yangtze River Delta (YRD) region was established for the period of 2010-2012. Results indicated that the total emissions of industrial VOCs increased from 3.34 Tg in 2010 to 3.99 Tg in 2012 at an annual average rate of 9.3%. Furniture manufacturing, machinery equipment manufacturing, architectural ornament, and petroleum refining were estimated to be the key sources, which contributed 58.6% of the total emissions in 2012. Based on the population database, the emission inventory was gridded into 1 km × 1 km grid cells with ArcGIS, which indicated that VOC emissions exhibited remarkable spatial and temporal characteristics. The most polluted areas were mainly centered in Shanghai, Nanjing, Ningbo, Hefei, and the Hangzhou and Taihu lake basin, which were the most developed and industrialized regions in the YRD. VOC emissions from specified anthropogenic sources under three different control scenarios for the different emission targets in 2030 were projected. The estimated average removal efficiency of the control technologies for each anthropogenic source should improve by 68.1% (scenario 2030B) and 79.0% (scenario 2030C). An entire process-control management scheme needs to be established based on the investigation of industrial processes, and the proportion of the application should be improved in the future.

Source Apportionment of Air Pollution and Characteristics of Volatile Organic Compounds in a Municipal Wastewater Treatment Plant, North Taiwan

“…VOCs are organic chemicals mainly composed of carbon atoms that are readily emitted to the atmosphere as gases due to the high vapor pressures resulting from their low boiling points (Chen et al, 2013). VOCs are also crucial precursors to secondary organic aerosols (SOAs) (Zheng et al, 2017). An individual VOC can react at different rates with different reaction mechanisms and has different O 3 formation potentials; therefore, the control of VOC emission sources needs to consider their emission amounts and chemical reactivities (e.g., maximum incremental reactivity) (Ou et al, 2015).…”

Evaluation of air pollutants emitted from wastewater treatment processes in Egypt

“…[3,[11][12][13][14][15][16] These processes include aeration, digestion, mechanical thickening, and drying of sludge and result in the release of a wide array of air pollutants for example, total volatile organic compounds (TVOC), carbon monoxide (CO), nitrogen dioxide (NO 2 ), sulfur dioxide (SO 2 ), suspended particulate matter (SPM), hydrogen sulfide (H 2 S), and ammonia (NH 3 ). [3,[17][18][19][20][21][22] TVOCs can be very toxic and are categorized as hazardous air pollutants particularly for human health. [23] At high concentrations, H 2 S can be poisonous or even lethal; however, the most typical symptoms at relatively lower concentrations are dizziness, headache, and nausea.…”

Species and characteristics of volatile organic compounds emitted from an auto-repair painting workshop

“…Previous studies have focused on VOC emission testing using a chamber 13 – 15 or the VOCs emitted from large-scale industrial sources 16 – 19 , with the impact of the emitted VOCs on the environment alone being considered. In general, an industrial complex and a measurement site of interest are selected, and ambient VOC concentrations are measured through real-time monitoring or sampling to determine the level and temporal variability of pollution.…”