How can innovations in technology and research reduce exposures to toxic chemicals?

How can innovations in technology and research reduce exposures to toxic chemicals?
http://www.psr.org/environment-and-health/environmental-health-policy-institute/how-can-innovations-in-technology-and-research-reduce-exposures-to-toxic-chemicals.html

"Reducing the health risks from toxic chemicals in the environment is a complex project involving a multi-tiered approach. One approach is to address the consequences of chemical exposure after the fact, such as by advancing the treatments of illnesses that result from toxic chemical exposure. While this may have valuable health benefits, it is an inefficient way to reduce health risks. Another approach is to try to prevent exposure to toxic chemicals already in the environment, such as through abatement and clean-up of toxic waste dumps, or by urging consumers to use caution in the store aisles. Again, this is important to the individual citizen living next to a waste site, and the individual consumer at the check-out counter, but it is a relatively inefficient way to address the health effects of toxic chemical exposure. Yet another approach is to try to prevent toxic chemicals from gaining entry to the market, such as by limiting the introduction of toxic chemicals into commerce. This approach takes prevention to a more basic level. But what if we tried to address toxic chemicals at the most primary level of prevention – by preventing them from being invented? Environmental health experts and chemical engineers working on fundamental prevention have explored the ways in which technology and research can shepherd in a decidedly new chemical era, one that does not compromise human health. This month, our contributors explain more about how engineering technology and research on toxic chemicals may be harnessed to protect the public health."