Geochemistry and risk assessment of street dust in Luanda, Angola: A tropical urban environment

How much malaria occurs in urban Luanda, Angola? A health facility-based assessment.

We conducted a health facility-based survey of patients with fever during malaria transmission season to determine the proportion with laboratory-confirmed malaria in Luanda, Angola. We enrolled 864 patients at 30 facilities; each underwent a blood film for malaria and a questionnaire. Only 3.6% had a positive blood film. When stratified by distance of the facility to city center (< 15 km and >...

Assessment of Lead in Luanda Soil from Angola, Africa

Abstract: Lead is a naturally occurring bluish-gray metal present in small amounts in the earth’s crust. It can be found in all parts of our environment. Although lead occurs naturally in the environment, most of the high levels of lead found come from human activities such as burning fossil fuels, mining, and manufacturing. Lead has many different applications and it is currently used in the p...

Health Risk Assessment of Metals in Street Dust of Karaj City in 2018

Background: In the last two decades, air pollution has become a serious problem, leading to a variety of harmful health effects. Street dust is a complex combination of pollutants from different sources, which can be a good indicator of air quality in the urban environment. So, this study was conducted to assess the health risk of toxic metals associated with street dust and identify their emis...

assessment of deep word knowledge in elementary and advanced iranian efl learners: a comparison of selective and productive wat tasks

testing plays a vital role in any language teaching program. it allows teachers and stakeholders, including program administrators, parents, admissions officers and prospective employers to be assured that the learners are progressing according to an accepted standard (douglas, 2010). the problems currently facing language testers have both practical and theoretical implications but the first i...

Paediatric otorhinolaryngological findings in Luanda, Angola