Advertisement

Topics

Comparison on aerosol physicochemical properties of sea and land along the coast of Bohai, China.

08:00 EDT 5th April 2019 | BioPortfolio

Summary of "Comparison on aerosol physicochemical properties of sea and land along the coast of Bohai, China."

The Bohai Sea is one of four major sea areas adjacent to China, air pollution is becoming an issue along the Bohai coast owing to rapid industrialization and urbanization. To analyze the sea-land interaction and its influence on regional particulate pollution, a comparison of sea and land aerosol physicochemical properties was carried out using observations and numerical simulation. Three observation sites, an ocean site on the Bohai Sea, a coastal station in the Tanggu district, and an inland station in Tianjin City were established. The movements and interactions of pollutants between land and sea were determined, and it was found that the convergence of sea-land breezes produced an ascending motion, which served to concentrate pollutants, with the polluted central body of air extending upward to a height of 200 m. The proportion of fine particle aerosols was greater in Bohai than at the inland site, although aerosol pollution levels over land were higher than those over ocean. The annual average aerosol optical depths, at the Bohai and inland sites were 0.74 and 0.82, and the annual average wavelength indices were 0.97 and 0.90, respectively. The spatial distribution of PM concentration was characterized as inland > Bohai > coastal zone, which reflected local emissions, the special terrain and meteorological conditions of the coastal zone. Higher concentrations of EC, SO, Mg, Al, V, and Cr at Bohai, compared to the other sites, might have been due to ship emissions on the Bohai Sea, while industrial development could explain why the maximum concentrations of Fe and NO were observed at the coastal site. In addition, the diurnal distribution of SO exhibited a trend opposite to that for humidity, both at the Bohai and coastal sites, which indicated that, in addition to secondary transformation under high humidity conditions, sulfate emission sources were located locally.

Affiliation

Journal Details

This article was published in the following journal.

Name: The Science of the total environment
ISSN: 1879-1026
Pages: 148-156

Links

DeepDyve research library

PubMed Articles [9698 Associated PubMed Articles listed on BioPortfolio]

Long-term spatiotemporal variations of aerosol optical depth over Yellow and Bohai Sea.

In this study, MODerate resolution Imaging Spectroradiometer (MODIS) Collection 6.1 (C6.1) level-2 Dark Target (DT) Aerosol Optical Depth (AOD) observations at 550 nm (AOD) for the highest quality fl...

Analysis of water vapor effects on aerosol properties and direct radiative forcing in China.

The effects of column water vapor (CWV) on aerosol optical properties, radiative effects and classification are studied by using aerosol and CWV data from eight Aerosol Robotic Network (AERONET) sites...

The Role of pH in Aerosol Processes and Measurement Challenges.

pH is one of the most basic chemical properties of aqueous solution, but its measurement in nanoscale aerosol particles presents many challenges. pH of aerosol particles is of growing interest in the ...

Physicochemical properties to support fibre characterization in monogastric animal nutrition.

The aim of the study was to rank conventionally used fibre rich feeds for their physicochemical properties and detect possible correlation between analytical fibre determinations. A total of 22 sample...

How Entanglement of Different Physicochemical Properties Complicates the Prediction of in vitro and in vivo Interactions of Gold Nanoparticles.

The physicochemical properties of a set of 21 different gold nanoparticles (spherical and rod-shaped nanoparticles (NPs) of different diameters with 3 different surface coatings) were studied. Protein...

Clinical Trials [3930 Associated Clinical Trials listed on BioPortfolio]

Muscle Mass and Nutritional Risk in Older Adults

This study aims to compare the COAST (comprehensive older adult screening tool) to muscle mass as determined by BIA (bioelectric impedance analysis) and thus, determine if the COAST is a v...

Effects of an Aquatic Therapy Program Versus a Land Program in Patients Who Suffered a Stroke

The objective of this study is to investigate the relative effectiveness of CCT on water versus on land in stroke patients. Additionally, the study will to determine if there are differenc...

Non Substitutive Strategies to Improve Haemophilia Care in Developing Countries. Experience in Ivory Coast.

This study aims to make an inventory of the condition and care of patients with haemophilia and carriers for haemophilia in Ivory Coast and to promote the use non substitutive strategies t...

Pharmacokinetics (PK) Study of Epinephrine Inhalation Aerosol in Healthy Volunteers

This study examines the pharmacokinetic profile of Armstrong's proposed Epinephrine Inhalation Aerosol USP, an HFA-MDI (E004), in healthy male and female adult volunteers. Safety of E004 w...

Reaching Exercise Goals: Comparison of Exercise Means in Patients With Knee Osteoarthritis

The primary objective is to evaluate water based treadmill exercise, land based treadmill exercise, and upright cycling in meeting American College of Sports Medicine exercise goals for mo...

Medical and Biotech [MESH] Definitions

Comparison of various psychological, sociological, or cultural factors in order to assess the similarities or diversities occurring in two or more different cultures or societies.

The physical phenomena describing the structure and properties of atoms and molecules, and their reaction and interaction processes.

An independent sultanate on the northeast coast of Borneo. Its chief products are oil and natural gas. Its name is Hindi, coming from the Sanskrit bhumi, land or region. It gave its name Brunei to Borneo. (From Webster's New Geographical Dictionary, 1988, p183 & Room, Brewer's Dictionary of Names, 1992, p82)

Comparison of outcomes, results, responses, etc for different techniques, therapeutic approaches or other inputs.

The physical process of passing into, or being taken up or taken in by a substance.

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Searches Linking to this Article