The health based value for ethylbenzene is 0.14 milligrams per litre based upon the non-cancer risk assessment. This is calculated by multiplying 0.022 milligrams per kilogram body weight per day by 70 kilograms then by 0.2. This product is then divided by 2.15 litre equivalent per day and the result is then rounded to 0.14 milligrams per litre.