Tagged on: Chemicals and Waste

Reports
Reducing Mercury Emissions from Coal Combustion in the Energy Sector in Vietnam
United Nations Environment Programme

Emissions of mercury (Hg) from thermal power stations are a subject of increasing concern because of their toxicity, volatility, persistence, and longrange transport in the atmosphere. Hg has the tendency for bioaccumulation as methyl Hg and thus enters the food chain. Once released into the environment, Hg contaminates soil, air, surface and ground water. Hg is a neurotoxin and causes adverse health effects. Hg is a global pollutant that is emitted, deposited, and reemitted on both a local and global scale in both terrestrial and marine environments. Toxic Hg emitted from coal-fired power plants originates from the Hg present in coal. Burning of large quantity of coal for power generation makes it the second largest anthropogenic source of Hg emissions at a global level. The Pollution Control Department (PCD) and United Nations Environment Programme (UNEP) have entered into a Small-Scale Funding Agreement to undertake a project titled “Reducing Mercury Emissions from Coal Combustion in the Energy Sector in Vietnam”. In accordance with UN Environment Governing Council priorities, identified in Decisions 24/3 and 25/5, and with the goal of reducing Hg emissions from the coal partnership area under the UN Environment Global Mercury Partnership, the project aims to present national information on: coal types and coal usage; characterize coal-fired power sector in Vietnam; develop an emission inventory for the coal fired energy sector; and present other relevant information to improve accuracy of future emission inventories for the sector.


Download: English
2017
Other
Lead in Enamel Decorative Paints: National Paint Testing Results Annex 1: Country by Country Results
United Nations Environment Programme
Download: English
2013
Reports and Books
Lead in Enamel Decorative Paints: National Paint Testing Results - A Nine Country Study
United Nations Environment Programme

A total of 234 cans of enamel decorative paints were purchased in retail establishments in the following nine countries: Argentina, Azerbaijan, Chile, Cote d’Ivoire, Ethiopia, Ghana, Kyrgyzstan, Tunisia, and Uruguay. An additional 10 cans of anti-corrosive enamel paints were purchased in Côte d'Ivoire. All the paints – the 234 samples of decorative paints and the 10 samples of anti-corrosive paints – were tested for their total lead content, and dry weight.


Download: English
2013
Other
Lead in Enamel Decorative Paints: National Paint Testing Results Annex 2: Materials and Methods, including Analytical Laboratory Results and Quality Control Procedures
United Nations Environment Programme
Download: English
2013
Book/Report
UNEP Emerging Issues: Environmental Consequences of Ocean Acidification: A Threat to Food Security
United Nations Environment Programme

Carbon dioxide is altering the chemistry of the surface oceans and causing them to become more acidic. From scientists and marine resource managers, to policy and decision-makers, there is growing concern that the process called ocean acidification could have significant consequences on marine organisms which may alter species composition, disrupt marine food webs and ecosystems and potentially damage fishing, tourism and other human activities connected to the seas.


Download: English
2010
Reports and Books
Aspectos Ambientales en Mineria de Metales No Ferrosos (Cu, Ni, Pb, Zn, Au) - Inforne Tecnico No. 5
United Nations Environment Programme

La minerIa y sus actividades conexas pueden ser una fuente de considerable perjuicio para el medio ambiente. La contaminación de aguas de superficie y subterráneas, el daño pro-ducido a Ia tierra y Ia destrucción del habitat son aigunos de los impactos que han sido registrados en el pasado. Los riesgos para Ia salud y para Ia seguridad pueden ser conside-rabies también para los trabajadores de una mina o para quienes viven en sus cercanIas. El deterioro de los recursos naturales y de Ia salud humana pueden tener un efecto nocivo en el potencial de crecimiento a largo plazo de un pals, an cuando haya empresas que obtengan beneficios económicos inmediatos. Por esta razón, es importante que, en Ia medida de lo posible, Ia minerIa minimice estos impactos destructores. Con una planifica-ción cuidadosa, con tecnologlas modernas, y con una gestión sensibilizada al probiema, es a menudo posible lograr una minerIa con un costo ambiental aceptable. Esta directiva téc-nica da un panorama de los métodos y de las tecnologlas que pueden ser aplicados para alcanzar ese objetivo.


Download: Spanish
1994
Summaries
Valuing Plastic: The Business Case for Measuring, Managing and Disclosing Plastic Use in the Consumer Goods Industry - Executive Summary
United Nations Environment Programme

The objective of this report is to help companies manage the opportunities and risks associated with plastic use. It articulates the business case for companies to improve their measurement, disclosure and management of plastic use in their designs, operations and supply chains.


Download: English
Reports and Books
Atmospheric Pathways of Sulphur Compounds: A General Report - MARC Report Number 7
Monitoring and Assessment Research Centre

This report broadly reviews the atmospheric transport of sulphur compounds on a regional scale. It lists estimates of present global emissions and summarizes present knowledge concerning transport models needed to estimate and predict sulphur oxide transport up to distances of several thousand kilometres. The report notes that present knowledge about these processes is insufficient for making adequate estimates of fluxes or for predicting the outcome of severe episodes.


Download: English
Reports and Books
The Use of Liquified Petroleum Gas (LPG) in Sudan
United Nations Environment Programme

This study demonstrates that liquefied petroleum gas (LPG) use in Sudan is on a slow ascendancy, due in particular to government incentives, investment by LPG companies in distribution infrastructure and dissemination efforts made by private, public and non-governmental organizations. LPG use remains, however, concentrated in the central region of the country. This has been attributed to high population density, the high price of woodfuel, greater awareness and infrastructure development. This report evaluates the efforts to date to support the adoption of LPG use across the country, and looks to highlight the constraints currently blocking its widespread use.The study analyses a range of case studies of LPG promotion initiatives across Sudan, recognizes the main barriers for the widespread national use of LPG, and proposes recommendations.


Download: English
Reports and Books
Bi-ennial Global Interlaboratory Assessment on Persistent Organic Pollutants – Third Round 2016/2017
United Nations Environment Programme

The third Bi-ennial Global Interlaboratory Assessment on Persistent Organic Pollutants (POPs) was organized in 2016. After invitation to participate in this third round of the proficiency test, 175 laboratories from 66 countries had registered. The test materials included test solutions of analytical standards, the abiotic matrices sediment, air (extract) and water and the biotic matrices fish, human milk and human plasma. The results for the 23 groups of POPs that were listed in the annexes of the Stockholm Convention until 2013 and in addition hexachlorobutadiene were assessed. These resulted in a report with a wealth of information on POP analysis and huge datasets from which the laboratories can evaluate their own methods and performance.


Download: English