scholarly journals Characteristics and Sources of Heavy Metals in PM2.5 during a Typical Haze Episode in Rural and Urban Areas in Taiyuan, China

Atmosphere ◽  
2017 ◽  
Vol 9 (1) ◽  
pp. 2 ◽  
Author(s):  
Kankan Liu ◽  
Qingmin Shang ◽  
Changyuan Wan ◽  
Ping Song ◽  
Chanyuan Ma ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Urban Areas ◽  
Rural And Urban Areas ◽  
Rural And Urban ◽  
Haze Episode

scholarly journals Evernia Goes to School: Bioaccumulation of Heavy Metals and Photosynthetic Performance in Lichen Transplants Exposed Indoors and Outdoors in Public and Private Environments

Plants ◽  
2019 ◽  
Vol 8 (5) ◽  
pp. 125 ◽  
Author(s):  
Luca Paoli ◽  
Zuzana Fačkovcová ◽  
Anna Guttová ◽  
Caterina Maccelli ◽  
Katarína Kresáňová ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Public Schools ◽  
Urban Areas ◽  
Fluorescence Emission ◽  
Photosynthetic Performance ◽  
Physiological Status ◽  
Evernia Prunastri ◽  
Public And Private ◽  
Rural And Urban Areas ◽  
Rural And Urban

Recently indoor air quality (IAQ) has become a key issue, especially in schools, where children spend most of the day. Only in a few cases IAQ was investigated using lichens as biomonitors. During autumn 2017, lichens (Evernia prunastri) were exposed for two months indoors and outdoors in public (schools) and private (dwellings) environments, in both rural and urban areas of Slovakia. The bioaccumulation of selected elements and the physiological status of the samples were considered. The content of heavy metals increased in samples exposed outdoors for 11 out of 12 elements (Al, As, Cd, Cr, Cu, Fe, Pb, S, Sb, V and Zn, but not Ca) in the urban area and for 5 (As, Cd, Cu, Pb and Sb) in the rural area. Indoor concentrations were overall similar, both in rural and urban buildings, independently of the outdoor conditions. An indoor accumulation occurred only for Cd, Cu and Pb. An indoor origin was suggested for Cd, while for Cu and Pb, outdoor penetration (car traffic) is the likely cause of indoor values. Indoor exposed lichens maintained their vitality (as reflected by chlorophyll a fluorescence emission). This latter result further supports the use of lichen biomonitoring as a suitable method for assessing IAQ.

COMPARATIVE ANALYSIS OF SOME MINERAL PROFILE OF HONEY MARKETED AND CONSUMED IN SOME OF THE STATES IN NORTHERN PART OF COUNTRY (NIGERIA)

2015 ◽  
Vol 1 (01) ◽  
pp. 22-32
Author(s):  
R. Odoh
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Urban Areas ◽  
Traditional Values ◽  
Rural And Urban Areas ◽  
Rural And Urban ◽  
Metal Poisoning ◽  
Mineral Profile ◽  
The Mean ◽  
Mean Concentration

Honey and honey trade is an important economic activity for many tropical rural and urban areas worldwide. In West Africa and other part of the world, honey and honey products holds high socio–cultural, religious, medicinal and traditional values. Therefore, to maximize benefits or to enhance profit, a variety of components are added to the raw, fresh and unprocessed honey, introducing the possibility of heavy metals contaminants. Therefore the honey sold in various places, markets and shops  in some states in Northern Nigeria (Benue, Nassarawa and Taraba) including Abuja FCT, in Nigeria was analyzed to determine the level of heavy metals (Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, and Zn).All the honey samples contain heavy metals. The results ranged from 0.028–0.070, 0.023–0.058, 0.042–0.092, 4.231–8.589, 8.115–14.892, 0.078–0.922, 0.044–0.092, 0.041–0.087 and 18.234–28.654 μg/L for Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn respectively. The mean concentration (μg/L) of the heavy metals Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, and Zn of the regularly marketed honey is significantly higher than the mean concentration observed in raw, fresh and unprocessed honey. However, continued consumption of honey with high heavy metal content might lead to exposure to chronic heavy metal poisoning.

Management of minor ailments in primary schoolchildren in rural and urban areas

1996 ◽  
Vol 22 (3) ◽  
pp. 167-174
Author(s):  
J A Cantrill ◽  
B Johannesson ◽  
M Nicholson ◽  
P R Noyce
Keyword(s):  
Urban Areas ◽  
Rural And Urban Areas ◽  
Rural And Urban ◽  
Primary Schoolchildren ◽  
Minor Ailments

Classroom Management

2016 ◽  
Vol 1 (1) ◽  
pp. 201
Author(s):  
Elida Kurti
Keyword(s):  
Classroom Management ◽  
General Education ◽  
Urban Areas ◽  
Teaching And Learning ◽  
Educational Institutions ◽  
Important Place ◽  
Rural And Urban Areas ◽  
Rural And Urban ◽  
Intellectual Level

This paper aims to reflect an effort to identify the problems associated with the educational learning process, as well as its function to express some inherent considerations to the most effective forms of the classroom management. Mentioned in this discussion are ways of management for various categories of students, not only from an intellectual level, but also by their behavior. Also, in the elaboration of this theme I was considering that in addition to other development directions of the country, an important place is occupied by the education of the younger generation in our school environments and especially in adopting the methods of teaching and learning management with a view to enable this generation to be competitive in the European labor market. This, of course, can be achieved by giving this generation the best values of behavior, cultural level, professional level and ethics one of an European family which we belong to, not just geographically. On such foundations, we have tried to develop this study, always improving the reality of the prolonged transition in the field of children’s education. Likewise, we have considered the factors that have left their mark on the structure, cultural level and general education level of children, such as high demographic turnover associated with migration from rural and urban areas, in the capacity of our educational institutions to cope with new situations etc. In the conclusions of this study is shown that there is required a substantial reform even in the pro-university educational system to ensure a significant improvement in the behavior of children, relations between them and the sound quality of their preparation. Used literature for this purpose has not been lacking, due to the fact that such problems are usually treated by different scholars. Likewise, we found it appropriate to use the ideas and issues discussed by the foreign literature that deals directly with classroom management problems. All the following treatise is intended to reflect the way of an effective classroom management.

Literacy and Education: Fifth Release From the 1961 Census of Pakistan (Review Article)

1963 ◽  
Vol 3 (3) ◽  
pp. 424-442
Author(s):  
Jamila Akhtar
Keyword(s):  
Population Growth ◽  
Urban Areas ◽  
Review Article ◽  
Interim Report ◽  
Educational Levels ◽  
Rural And Urban Areas ◽  
The Past ◽  
Review Articles ◽  
Rural And Urban ◽  
Age And Sex

This review of the Literacy and Education Bklletin1 of the 1961 Census is fourth in the series of review articles published in this journal2. The Bulletin under review forms a part of the interim report on the characteristics of the population of Pakistan. It gives information on the number of illiterate and literate persons by age and sex for rural and urban areas on division and district basis; illiterate and literate.population in selected cities and towns; and the educational levels attained by the literate population by age and sex for divisions and districts. Relevant statistical notes and statements precede the tables in the Bulletin. The objective of this review is to describe the meaningfulness and significance of literacy statistics. To this end, a distinction is made between formal and functional levels of literacy. Comparisons of the 1951 and 1961 census figures are undertaken to indicate the progress of literacy and education during the past decade with reference to the effect of intercensal rate of population growth on such progress. Certain questions regarding the reliability of data are raised, which emphasize the need for caution in the interpretation of literacy statistics.

Sign in / Sign up

Export Citation Format

Share Document