After analyzing salt from 21 countries in Europe, Asia, North and South America, and Africa, a new study published in Environmental Science and Technology found microplastics in 36 out of 39 brands.
Microplastic density was highest among Asian brands, especially those from Indonesia. The only three salts free from plastic were those from Taiwan, China, and France.
Researchers sampled three types of salts and found that sea salt had the highest microplastic levels, followed by lake salt, and then rock salt.
