ABSTRACT
Sampling for pesticides and contaminants in fog requires special approaches. An example is given in detail for sampling pesticides in tule fog such as occurs in the San Joaquin and Salinas valleys of California. The landmark study by Glotfelty et al., (1987) described the distribution of pesticides in air and suspended water in fog. Findings are some pesticides are enriched in fogwater beyond what is predicted by the Henry’s law constant. Compounds found in fog included many organochlorine (OC) and organophosphate (OP) pesticides and herbicides, phthalates and polycyclic aromatic hydrocarbons (PAHs), and other contaminants. Many of the same compounds are found in rainwater sampled in the United States and worldwide.
