Have you ever struggled with modifying your Scii document while on the go? Well, DocHub has an excellent solution for that! Access this cloud editor from any internet-connected device. It enables users to Cancel topic in Scii files rapidly and anytime needed.
DocHub will surprise you with what it provides you with. It has powerful functionality to make any updates you want to your paperwork. And its interface is so simple-to-use that the whole process from start to finish will take you only a few clicks.
After you finish editing and sharing, you can save your updated Scii document on your device or to the cloud as it is or with an Audit Trail that contains all adjustments applied. Also, you can save your paperwork in its initial version or turn it into a multi-use template - complete any document management task from anywhere with DocHub. Sign up today!
welcome to ap environmental science in this video we are going to talk a little bit about ld50 or lethal dose 50 and the dose response curves now when talking about ld50 and dose response what we really are doing is talking about toxicity so ing to the epa the maximum level of exposure to lead is 15 parts per billion mercury would be two parts per billion and chromium would not be able to exceed 100 parts per billion and when youre looking at this you might wonder well why is this different from pollutant to pollutant and how does the epa really come up with these values for what is that safe threshold well the way that they do that is by using lethal dose 50 or ld50 and dose response ld50 is the amount of a substance that is lethal to 50 of the population of organisms and the way that we measure this is by saying the milligrams per substance per kilogram of body mass and this data is extrapolated from these smaller studies out to a human sized body and this helps us to compare the to