Multi-Objective Multi-Dimensional Transportation: A Case Study to the Flow of the Commodities of the Main Roads to Main Nodes in the North Western Coastal Strip of Egypt

Water pollution by asbestos may result from anthropogenic sources, such as water passing in cement-asbestos aqueduct pipes, or natural sources. Referring to this second case, pollution could be due to the flow of superficial water or groundwater into naturally occurring asbestos (NOA) in rock formations like green stones and serpentinites.Asbestos-bearing rocks weathering is the principal natural cause of fibres water-dispersion. Despite the abundant occurrence of NOA rocks where water can flow (underground and superficially) in the North-Western part of the Alps, a few is known about the mechanism of fibres release in water and the correlation with the geolithological and hydrogeological characteristics of the area.Moreover, the knowledge on the eventual noxiousness of waterborne fibres have still to be deepened: in fact, they can come into contact with human being as airborne fibres after water vaporization, or by ingestion, especially if fibres are present in drinking water. While a lot is known about disease caused by airborne asbestos fibres high-dose respiration, not enough has been yet comprehended about potential noxiousness of fibre ingestion. Following some in vivo studies, US-EPA (United States Environmental Protection Agency) defined a maximum contaminant level of 7x106 ff/l in drinking water, but this limit is not fully shared by the whole scientific community.Against this background, it has become fundamental to clarify the main aspects related to waterborne fibres, in particular their natural occurrence in water and their transportation due to water flowing into NOA. Consequently, decision has been made to conduct a study on the former chrysotile mine of Balangero, in Piedmont (Italy), which was selected as a reference case study for its great significance in the North-Western Alps context. The case study was developed in collaboration with R.S.A. s.r.l., the company that is in charge of the site remediation.A sampling and analysis campaign regarding the superficial hydrographic network of the area was settled: 5 different sampling points were selected, 2 of them inside the principal site perimeter and 3 in the villages situated downstream of the site. They have been monitored for about one year, to evaluate the seasonal variability.The main aims of the research are:<ul><li>the evaluation of asbestos concentration in term of number of fibres per liter (ff/l);</li> <li>the correlation between the concentration variability and the precipitation pattern over the four seasons;</li> <li>the evaluation of asbestos concentration defined as mass per liter (pg/l), depending on fibres dimension;</li> <li>the study of fibres characteristics, such as their dimension, morphology and chemical composition;</li> <li>the study of a possible correlation between asbestos concentration in pg/l and ff/l;</li> <li>the potential presence of fibres bundles or aggregates which can constitute a problem in the evaluation of the asbestos concentration, in particular for the correlation between ff/l and pg/l.</li> </ul>Finally, an attempt to relate the number of waterborne fibres to those that can eventually be released in air is still ongoing.

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From Language Contact to Language Variation

Journal of Language Contact ◽

10.1163/19552629-00702003 ◽

2014 ◽

Vol 7 (2) ◽

pp. 288-308 ◽

Cited By ~ 2

Author(s):

Massimo Cerruti

Keyword(s):

Language Contact ◽

Language Change ◽

Language Variation ◽

Italian Region ◽

The North ◽

North Western ◽

Insight Into

This paper falls within the line of research dealing with the role of intralinguistic variation in contact-induced language change. Two constructions are compared in terms of their respective degrees of grammaticalization: the progressive periphrasis ese lì c/a+Verb, which is widespread in some Northern Italo-Romance dialects, and the corresponding Italian construction essere lì che/a+Verb. The study focuses on the presence of such constructions in Turin, the capital of the north-western Italian region of Piedmont, in which the former periphrasis is less grammaticalized than the latter. It contends that the grammaticalization process of essere lì che/a+Verb was triggered by the contact between Piedmontese dialect and Italian, whereas the pace of grammaticalization of this periphrasis is affected by the contact between different varieties of Italian. The paper points out that the case study may provide insight into more general issues concerning not only the interplay of contact and variation in language change but also the role of sociolinguistic factors in shaping contact-induced grammaticalization phenomena.

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Mapping Environmental Impacts of Rapid Urbanisation and Deriving Relationship between NDVI, NDBI and Surface Temperature: A Case Study

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/940/1/012005 ◽

2021 ◽

Vol 940 (1) ◽

pp. 012005

Author(s):

V Saini

Keyword(s):

Surface Temperature ◽

Environmental Impacts ◽

Landsat Data ◽

Environmental Consequences ◽

The North ◽

Hybrid Classification ◽

Critical Components ◽

North Western ◽

Insight Into

Abstract Urbanisation is a complex global phenomenon driven by unorganised expansion, increased immigration, and population explosion. Changes in land cover are one of the most critical components for managing natural resources and monitoring environmental impacts in this context. In the present study, a hybrid classification approach was applied to Landsat data to get insight into the urbanisation of the Chandigarh capital region from 2000 to 2020. The results demonstrate an increasing urbanisation tendency on the city’s outskirts, particularly in the north-western and southern directions. The most considerable alterations were seen in the class vegetation as it swiftly transformed to built-up regions. Two indices, namely NDVI and NDBI and surface temperature images, were also derived from studying their inter-relationships. The paper suggests a positive linear relationship between surface temperature and NDBI while a negative correlation between NDVI and NDBI. Such studies may help city planners to take timely and appropriate efforts to reduce the environmental consequences of urbanisation.

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