It's more focused on hazardous products that are not allowed to simply by 'dumped' in more developed countries with stricter laws.
Some unethical transnational corporations will use developing countries/vulnerable markets (these usually have less laws concerning the disposal of harmful products) as a way of getting rid of illegal products that cannot be sold; the countries can be coerced/bribed with the incentive of paying off foreign debt, and as a result can end up with large amount of a hazardous product such as nuclear waste.
I'm fantastic.