Indoor school environment: easy and low cost to assess inorganic pollutants

被引:29
作者
Canha, N. [1 ]
Freitas, M. C. [1 ]
Almeida, S. M. [1 ]
Almeida, M. [2 ]
Ribeiro, M. [2 ]
Galinha, C. [3 ]
Wolterbeek, H. Th [4 ]
机构
[1] URSN, Inst Tecnol & Nucl, EN 10, P-2686953 Sacavem, Portugal
[2] Escola Super Tecnol Saude Lisboa, P-1900096 Lisbon, Portugal
[3] Univ Tecn Lisboa, CERENA IST, P-1049001 Lisbon, Portugal
[4] Delft Univ Technol, Fac Sci Appl, Sect RIH, Dept Radiat Radionuclides & Reactors, NL-2629 JB Delft, Netherlands
关键词
Total particulate matter; Classrooms; Children; Chemical elements; ELEMENTAL COMPOSITION; PARTICULATE MATTER; MASS CONCENTRATION; TRACE-ELEMENTS; PM10; AIR; PM2.5; CLASSROOMS;
D O I
10.1007/s10967-010-0781-4
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Total particulate matter (TPM) was passively collected inside two classrooms of each of five elementary schools in Lisbon, Portugal. TPM was collected in polycarbonate filters with a 47 mm diameter, placed inside of uncovered plastic petri dishes. The sampling period was from 19 May to 22 June 2009 (35 days exposure) and the collected TPM masses varied between 0.2 mg and 0.8 mg. The major elements were Ca, Fe, Na, K, and Zn at mu g level, while others were at ng level. Pearson's correlation coefficients above 0.75 (a high degree of correlation) were found between several elements. Soil-related, traffic soil re-suspension and anthropogenic emission sources could be identified. Blackboard chalk was also identified through Ca large presence. Some of the determined chemical elements are potential carcinogenic. Quality control of the results showed good agreement as confirmed by the application of u-score test.
引用
收藏
页码:495 / 500
页数:6
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