It is not just one pesticide, it is a whole family of pesticides that include Malathion, Parathion, Diazinon and more. These are related both in terms of chemistry and mechanism of action to nerve gases such as Sarin and VX.

Don't use them on your lawn and garden, eat organic produce as much as you can, and beware of fruits and vegetables that are likely to expose you to pesticides, see

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3135239/

Overall I would be much more afraid of occupational exposure than pesticide residues