I guess this paper is useful; Environmental fate and toxicity of ionic liquids: A review. 

Hi Sir, Download and go through the attached files. I think this will be helpful!!

Dear Ishaq,

Please check the following links. They might be related directly to your topic.

http://www.sciencedirect.com/science/article/pii/S1877705816308979

http://www.sciencedirect.com/science/article/pii/S0304389416307786

http://www.sciencedirect.com/science/article/pii/S016773221630890X

http://www.sciencedirect.com/science/article/pii/S016773221630890X

Dear All

Thank you very much for data.

really appreciate it.

Thanks To Dr @Ouahid Dr @Avatar and Waleed

But still, I am unable to find LC50 values. Data referred to me not providing exactly LC50 values.

I need assistance to get LC50 data for this.