[DTogo]

Indeed, this latest episode, despite the fact that the cattle don't yet seem to have been harmed, will give little comfort to those who have to listen to industry assurances of safety. Would you want to eat cows that have been dining in fields covered in benzene and diesel fuel?

- The cows haven't been harmed... so why the quarantine??

- Benzene and diesel fuel come from fracking?? Isn't diesel fuel a refined product? Is there a naturally occurring refinery underground?

[DTogo]

Petroleum diesel, also called petrodiesel,[5] or fossil diesel is produced from the fractional distillation of crude oil between 200 °C (392 °F) and 350 °C (662 °F) at atmospheric pressure, resulting in a mixture of carbon chains that typically contain between 8 and 21 carbon atoms per molecule.[6]

[Gondring]

[...] why the quarantine??

I don't see the problem...the cattle seem perfectly healthy to me.

Except one thing is puzzling...I seem to have twice as many head as I had before!

On a more serious note...

- Benzene and diesel fuel come from fracking?? Isn't diesel fuel a refined product? Is there a naturally occurring refinery underground?

Diesel fuel has been used in fracking fluids for decades. Benzene and other components of fracking fluid are found in groundwater well above the fracked zone...whether by fluid migration or gas transport, I don't yet know.