Track topics on Twitter Track topics that are important to you
Road dust is a major reservoir of anthropogenic Pt and Rh. However, information about how these elements are released to the aquatic systems under environmentally relevant conditions is scarce. In this work, an innovative combination of analytical strategies is used to provide insight into the speciation analysis of those elements. A composite sample of road dust thoroughly characterized was incubated over 7 days in synthetic rainwater and seawater. In the filtered (<0.45 μm) solutions, truly dissolved Pt and Rh concentrations were measured by adsorptive cathodic stripping voltammetry, while total concentrations were determined by inductively coupled plasma mass spectrometry. Truly dissolved species corresponded to a small fraction of total Pt and Rh in the road dust; accordingly, values of 0.01% and 0.1% were obtained in both media for Pt and Rh, respectively, which remained constant over time. The concentration of total filter-passing species predominates for both elements by a factor of 10 and 2-3 for Pt and Rh, respectively, evidencing that particulate species coexist with truly dissolved forms. Temporal variations were observed for Pt, as opposed to Rh. These findings contribute to the gap in knowledge regarding Pt and Rh mobility in aquatic systems.
This article was published in the following journal.
Name: The Science of the total environment
This study investigated the chemical components of fine urban road dust from seven sampling sites, based on which we could predict potential human health effects. The elemental compositions, including...
We investigated the occurrence, distribution, and potential sources of 10 organophosphorus flame retardants (OPFRs) in road dust from the urban area of Dalian, China, as well as their associated human...
Potentially toxic metal (PTM) pollution in road dust is of great concern, however, our understanding of PTMs released by pyrotechnic displays and their adverse impacts on human health in road dust is ...
Death and injury due to motor vehicle crashes is the world's fifth leading cause of mortality and morbidity. City and urban designs might play a role in mitigating the global burden of road transport ...
Air pollution and dust pollution are major urban environmental issues, with road dust being a potential source and a pathway for human exposure. The developing megacities of India, where the populatio...
The study is focussed on two main questions: 1. The importance of dampness of the building and home dust as a factor of the subjects= responses. 2. Can measures used in KL...
House dust mite allergy is a common problem, resulting in asthma, chronic swelling of the eyes, and running nose. We test a possibility to immunize subjects sensitized against house dust m...
Textile workers are exposed to various harmful substances during work, including cotton dust, which is the dust present in air during the handling or processing of cotton. Previous researc...
Eviction methods for dust mite allergy have been evaluated in asthma control in a recent Cochrane meta-analysis. None have shown efficacy on asthma control and there are not recommended. T...
The aim of the study is to assess the effect of specific immunotherapy (SIT) to dust mites on clinical symptoms, reliever drugs usage, inhaled glucocorticosteroid usage, quality of life, l...
Motorized, recreational vehicles used on non-public roads. They include all-terrain vehicles, dirt-bikes, minibikes, motorbikes, trailbikes, and snowmobiles. Excludes MOTORCYCLES, which are considered public road vehicles.
The process whereby a society changes from a rural to an urban way of life. It refers also to the gradual increase in the proportion of people living in urban areas.
A diffuse parenchymal lung disease caused by accumulation of inhaled CARBON or coal dust. The disease can progress from asymptomatic anthracosis to massive lung fibrosis. This lung lesion usually occurs in coal miners, but can be seen in urban dwellers and tobacco smokers.
The planned upgrading of a deteriorating urban area, involving rebuilding, renovation, or restoration. It frequently refers to programs of major demolition and rebuilding of blighted areas.
The status of health in urban populations.
Blood is a specialized bodily fluid that delivers necessary substances to the body's cells (in animals) – such as nutrients and oxygen – and transports waste products away from those same cells. In vertebrates, it is composed of blo...