PCDD/F, PCB and HCB in Soil and Ash from Brick Production Sites in Kenya, South Africa and Mexico

The implementation of the Stockholm Convention implies the generation of national emission inventories for Dioxins and Furans. So far little is known about the emissions from processes typically applied in Developing countries. Among the processes with a high activity and a high pollution potential (since wastes are often co-incinerated) is brick making. In the follow up of emission measurements at brick kilns in Mexico (MX) soil and bottom ashes were collected around these sites and compared to samples from brick making sites in South Africa (SA) and Kenya (KY) . Through the comparison of the impact on the nearby environment we tried to verify, whether the Emission Factors obtained from the measurements in Mexico can be applied to other regions where no measurements are available and where no adequate infrastructure exists to conduct. The levels in soil and ash were low in SA and KY (wood and coal fired kilns) and at a comparable level to the MX sites where virgin wood or LPG was used. The soils around waste derived fuel fired kilns in MX were somewhat higher, but still at levels that can e found in rural environments of the Northern Hemisphere. Apart from the overall confirmation of the applicability of the emission factors obtained from the study in MX, the very low level in the background soils investigated confirms the global North/South gradient of POPs pollution.JRC.H.1-Water Resource

PCDD/PCDF, PCB, and Hexachlorobenzene in soil, bottom ash and products from brickmaking sites in developing countries - Results from surveys in Kenya, Mexico, and South Africa. A contribution to the Standardized Toolkit for Identification and Quantification of Dioxin and Furan Releases in support to the Stockholm Convention on Persistent Organic Pollutants

The report combines the results from soil sampling campaigns executed in Mexico, South Africa and Kenya in order to assess the impact of artisanal brick making on local environments. Moreover the study serves indirectly (through the comparison of the impact on soils), whether the emission factors for brick kilns obtained in in a separate study in Mexico can be applied to other developing countries. These emission factors will be introduced into the calculation scheme for the National Emission Inventories of unintentional POP's releases ("dioxin toolkit) which is the reporting tool under the reporting obligations laid down in the Stockholm Convention of POPs. Results revealed, that the soils in Mexico are higher contaminated then in South Africa and Kenya, most probably due to the practice of co-incineration of waste (oils), whereas in Africa coal or virgin biomass are used as fuels. In so far the emission factors obtained in Mexico apparently represent the upper range of emission factors for brick making.JRC.D.2-Water and Marine Resource

Kasachstan - Wirtschaft in der Krise, Suche nach neuen Reformkonzepten

Available from Bibliothek des Instituts fuer Weltwirtschaft, ZBW, Duesternbrook Weg 120, D-24105 Kiel A 199396 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Kasachstan - Wirtschaft im Umbruch

Available from Bibliothek des Instituts fuer Weltwirtschaft, ZBW, Duesternbrook Weg 120, D-24105 Kiel A 195919 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman