[Simultaneous detection of lower aliphatic amines and conventional cations in atmospheric PM particulates by ion chromatography].

Many amine pollutants exist in the atmosphere. Lower aliphatic amines promote the formation and growth of particles into PM, which damages the heart, lungs, and kidneys of the human body. PM, a common atmospheric particulate pollutant with complex compositions, is the main cause of haze weather.

[O Source Characteristics of an Industrial Area in the Yangtze River Delta Based on Boundary Observations].

To study the characteristics of ozone sources in a petrochemical industrial park in Shanghai, O and its precursors were synchronously and continuously measured for 3 months(June-August 2020) alongside meteorological parameters using an online monitoring system. The Texas Commission on Environmental Quality(TCEQ) method and principal component analysis(PCA) were used to study the contribution of regional background and local O concentrations in the industrial zone, the results of which were compared. The results indicated that:① During the observation period, the dominant wind directions in the park were southeast and east, and the average temperature was 27.

[Non-activated Peroxymonosulfate-Induced Degradation of Sulfasalazine: Kinetics and Mechanism Investigations].

Sulfate-radical-based advanced oxidation technologies by activation of peroxymonosulfate (PMS) have been widely applied for decontamination of wastewater, although our knowledge on the direct oxidation of organic contaminants by PMS is still limited. In this study, the direct interaction between PMS and sulfasalazine (SSZ), a widely used antibiotic, was investigated systematically, including the reaction kinetics and transformation pathways. The results revealed that SSZ degradation obeyed a pseudo-first-order kinetic model and increasing initial PMS concentration or ionic strength could accelerate the degradation rates; alkaline conditions were beneficial to SSZ removal by PMS; and the presence of Cl markedly promoted SSZ decay.

Secondary ion mass spectrometry: The application in the analysis of atmospheric particulate matter.

Currently, considerable attention has been paid to atmospheric particulate matter (PM) investigation due to its importance in human health and global climate change. Surface characterization, single particle analysis and depth profiling of PM is important for a better understanding of its formation processes and predicting its impact on the environment and human being. Secondary ion mass spectrometry (SIMS) is a surface technique with high surface sensitivity, high spatial resolution chemical imaging and unique depth profiling capabilities.

[Characteristics of Reactive VOCs Species During High Haze-Pollution Events in Suburban Area of Shanghai in Winter].

Based on the online measurements of VOCs of high pollution process at the university site in winter, VOCs' characteristics and species at different levels of haze pollution were analyzed. Fifty-five VOCs were detected during sampling. ∑VOCs concentrations ranged between 25.

[Correlation of Speciated Mercury with Carbonaceous Components in Atmospheric PM in Shengsi Region].

PM samples of four seasons were collected from Nov. 2014 to Aug. 2015 at the site of Shengsi island in Zhoushan islands.

The mobile monitoring of black carbon and its association with roadside data in the Chinese megacity of Shanghai.

High-level black carbon (BC) pollution is associated with traffic emissions in metropolitan areas with high vehicle density. Mobile monitoring was conducted to assess the in-vehicle BC exposure on three backbone ring roads (inner, middle, and outer ring roads) on October 14 and October 18, 2015 in Shanghai. Ambient BC monitoring was also simultaneously conducted in three fixed roadside stations from October 14 to October 20, 2015.

Personal exposure to black carbon during commuting in peak and off-peak hours in Shanghai.

A study on a commuter's exposure to black carbon (BC) in five different traffic modes (taxi, bus, subway, cycling and walking) was conducted in Xuhui District, Shanghai. A commuter's real-time exposure concentrations were recorded by MicroAeth AE51 BC monitors, and the average BC exposure concentration and inhalation dose were analyzed. Data collected by cyclist was applied to characterize the micro-variability in relation to traffic density and street topology.