Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Sebastian Jooste"'
Publikováno v:
Human and Ecological Risk Assessment: An International Journal. 11:1025-1046
It is increasingly common for water quality guidelines and risk assessments to consider the proportion of species at risk from a particular toxicant, based on the species sensitivity distribution (SSD) for that toxicant. There is a premise that the s
Autor:
Sebastian Jooste, Liesl Hill
Publikováno v:
Water Science and Technology. 39:173-176
With the increasing focus on environmental issues, the objective of this study is to evaluate the potential impact of contaminated sediments of the Blesbok Spruit near Witbank - which receives acid mine drainage (AMD) inter alia - on biota. Direct tr
Publikováno v:
Water Science and Technology. 32:293-299
This paper describes the progress made by the Department of Water Affairs and Forestry in the development of documented water quality guidelines for aquatic ecosystems in South Africa, which will be able to take into account local and site-specific c
Publikováno v:
Ecotoxicology and Environmental Safety. 31:164-172
Queletox, containing fenthion as active ingredient, is the avicide formulation used in South Africa to control red-billed finches ( Quelea quelea ). Control measures involve night spraying of roosting areas with a light aircraft. Since roosting areas
Autor:
Sebastian Jooste, Marius Claassen
Publikováno v:
Water SA; Vol 27, No 3 (2001); 283-292
The principle of ecosystem protection in the South African Water Act requires that water resource management tools for a multiple stressor environment be tailored to the characteristics of the aquatic ecosystem. The requirements of the Act, the chara
Autor:
Sebastian Jooste
Publikováno v:
Water SA; Vol 27, No 3 (2001); 293-302
A possibilistic approach to assess the risk of co-occurring stressors in an aquatic ecosystem based on the use of fuzzy sets is illustrated at the hand of a hypothetical case study. There are two aspects of importance: a fuzzy stressor response relat
Autor:
Christa Thirion, Sebastian Jooste
Publikováno v:
Water Science and Technology. 39
Biotic integrity assessment of a stream subject to acid mine drainage (AMD) indicated that a number of the expected taxa were absent. Acute and chronic toxicity assessment of water sampled in a stream subject to AMD impact indicate that even at near
Autor:
Liesl Hill, Sebastian Jooste
Publikováno v:
Water Science and Technology. 39
With the increasing focus on environmental issues, the objective of this study is to evaluate the potential impact of contaminated sediments of the Blesbok Spruit near Witbank - which receives acid mine drainage (AMD) inter alia - on biota. Direct tr