scholarly journals Particulate matter investigation in indoor environment

2013 ◽  
Vol 12 (1) ◽  
pp. 20-26

Particulate matter is one of the most important indoor air pollutants involved in a number of adverse health effects, such as premature deaths and increased mortality of infants and other parts of sensitive population. This paper focuses on investigation of metal substances of suspended as well as settled particulate matter in indoor environment. The monitoring of particulate matter concentration was carried out in three rooms of a selected flat building in the city of Košice, Slovakia. The sampling of settled particulate matter was carried out by passive methods during the period of 28 days. The investigation of suspended particulate matter investigation focused on total suspended particles (TSP) and thoracic fraction called PM10. The presence of selected metals in the samples was detected by atomic absorption spectrometry. The surface concentrations of settled particulate matter were detected in the range from 276.43 μg cm-2 to 570.70 μg cm-2, mass concentrations of total suspended particulate matter from 59.028 to 114.583 μg m-3. PM10 concentration values reached about half of the TSP concentration values (PM10/TSP ratio was from 0.48 to 0.6). Higher percentage of metals was detected in suspended particulate matter in comparison to the settled particles. Higher values were detected for all metals (except iron and zinc) in each measured room.

2011 ◽  
Vol 21 (6) ◽  
pp. 857-862 ◽  
Author(s):  
Mahmoud M. M. Abdel-Salam

Particulate matter is one of the most important indoor air pollutants that could cause a number of adverse health effects. Quantification of total suspended particulate matter (TSP) in homes in the city of Alexandria was carried out. In the present study, 15 of the 21 homes showed a higher average indoor TSP concentration than the outdoor sample, and the median indoor/outdoor ratio was 1.08. Moreover, the outdoor and the mean indoor TSP concentrations were found to correlate significantly. Concentrations of indoor particulate matter were found to be influenced by indoor sources and human activities as well as outdoor particles.


2001 ◽  
Vol 67 (1) ◽  
pp. 149-154 ◽  
Author(s):  
S. K. Ghosh ◽  
T. S. Patel ◽  
P. B. Doctor ◽  
P. K. Kulkarni ◽  
S. H. Shah ◽  
...  

2015 ◽  
Vol 49 (4) ◽  
pp. 263-270 ◽  
Author(s):  
MN Mondol ◽  
M Khaled ◽  
AS Chamon ◽  
SM Ullah

Aerosol particulate matter and trace gases were sampled at five locations in the city areas of Bangladesh. The sampling sites were selected in the city areas near motor vehicles run with heavy traffic. The average concentrations of total suspended particulate matter in city ambient air were 413.02, 292.63, 671.65, 184.09 and 301.13 ?g m-³ in Dhaka, Noakhali, Chittagong, Faridpur and Kustia, respectively, which were higher than the daily average value, given by WHO and US EPA standard. The highest SPM concentration is in Chittagong (671.65 ?g m-³) and the lowest in Faridpur (184.09 ?g m-³). The city areas studied fall in the ‘Unhealthy” to “Extremely Unhealthy’ class according to the Air Quality Index, 2003. Trace metal concentrations of total suspended particulate matter in city ambient air were analyzed. The reported previous Pb concentration in farmgate, Dhaka was 1238 ng m-3 by Biswas et al., (2003) and now shows a decreasing tendency, presumably due to the ban on the use of leaded fuel. The average results of trace metals have been compared to national and international standards. The Cu and Zn concentration of current study is found very high in comparison with other previously reported results. The air of Chittagong city is highly polluted. Motor vehicles, especially two stroke engine vehicles are increasingly major sources of air pollution in Chittagong. DOI: http://dx.doi.org/10.3329/bjsir.v49i4.22630 Bangladesh J. Sci. Ind. Res. 49(4), 263-270, 2014


2021 ◽  
Vol 14 (6) ◽  
pp. 3695
Author(s):  
Christiane Do Nascimento Monte ◽  
Ana Paula De Castro Rodrigues ◽  
Sara Macedo ◽  
Carolina Ramos Régis ◽  
Edinelson Correa Saldanha ◽  
...  

O Rio Tapajós é uma das maiores bacias hidrográficas da região Norte do país, e o crescimento populacional de algumas cidades amazônicas coloca em risco a qualidade das suas águas. A cidade de Santarém, no Oeste do Pará, é uma das maiores cidades paraenses e não tem uma rede de esgoto eficiente, logo boa parte do esgoto doméstico é lançado in natura em igarapés e no rio Tapajós, o que afeta diretamente a balneabilidade do rio, que é um dos destinos turísticos em ascensão no país, devido às praias de água doce, a qualidade do pescado, que é parte da dieta alimentar da região e pode ser um vetor de doenças, as quais podem aumentar os gastos com a saúde pública. Com o objetivo de avaliar a influência antrópica no rio Tapajós foi realizada uma amostragem em seis pontos do rio na região conhecida como a orla da cidade. Foram analisados parâmetros físico-químicos, biológicos e nutrientes), Apesar de boa parte dos parâmetros estarem em conformidade com a CONAMA 357/05, os parâmetros biológicos foram acima do permitido para a classe II, indicando influência antrópica. Os dados apontaram que a presença de material particulado em suspensão (MPS), coliformes totais e fósforo inorgânico dissolvido (PID), sugerem aumento da degradação da qualidade da água.  O estudo da queda na qualidade de água nos rios amazônicos é importante, pois a relação socioeconômica entre a população e os recursos hídricos é muito importante para a manutenção das funções ambientais, econômicas e sociais na região.   The anthropic influence on the water quality of the Tapajós River, in the city of Santarém-PA A B S T R A C TThe Tapajós River is one of the largest hydrographic basins of the Northern region of the country, and the population growth of some Amazonian cities puts the quality of its waters at risk. The city of Santarém, in western Pará, is one of the largest cities in Pará and does not have an efficient sewage system, so much of the domestic sewage is released in natura into streams and the Tapajós River, which directly affects the balneability of the river, which is one of the tourist destinations on the rise in the country, due to its freshwater beaches, the quality of the fish, which is part of the diet of the region and can be a vector of diseases, which can increase spending on public health. To evaluate the anthropic influence on the Tapajós River, sampling was carried out at six points on the river in the region known as the city edge. Although most of the parameters complied with CONAMA 357/05, the biological parameters were above the permitted for class II, indicating anthropic influence. The data pointed out that the presence of suspended particulate matter (SPM), total coliforms, and dissolved inorganic phosphorus (DIP), suggest increased degradation of water quality.  The study of the decline in water quality in Amazonian rivers is important because the socioeconomic relationship between the population and water resources is very important for the maintenance of environmental, economic, and social functions in the region. Keywords: Tapajós River, sewage, inorganic phosphorus, suspended particulate matter


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