Owned and maintained by Niels Hadrup, Toxicologist (ERT)
Location: Copenhagen, Denmark and Trondheim, Norway
Danish QSAR Database:https://qsar.food.dtu.dk/
An excellent tool for getting an overview of the potential toxicity of organic substances
ECHA R8 guideline - the guideline used to make health-based recommendations for exposure limits by the National Research Centre for the Working Environment in Denmark
WHO's IARC database
CLP / EU harmonised classifications (Annex VI
The Danish Work Authorities list of occupational exposure limits (Arbejdstilsynets
grænseværdiliste):
Calculation of ppm to mg/m3 in inhalation studies
It is highly useful to be able to do this quickly as most old tox papers give ppm - and usually you want the exposure dose to be in mg/m3
XXX mg/m3 = YYY ppm x Molecular weight / 24.45
Or use the calulator located at:
Review articles where you can find dose descriptors for you risk assessment - here is a link to our papers that are almost like a ready-meal from the supermarket - ready to use!
EFSA default values
You need to use these values when calculating oral doses in mg/kg bw (body weight) from feed or drinking water concentrations
I hope the site is useful /Niels Hadrup