The study examined fog water composition at a fog harvesting site in Chañaral, North Chile, which is known for mining contamination.
Differences in water quality were noted between samples collected at the top and bottom of the mountain, with high acidity and elevated levels of copper (Cu) and arsenic (As) found at the top.
The research involved evaluating the water against regulatory standards and analyses like neutralization factors and ion ratios to assess its suitability for various uses such as drinking, irrigation, or aquaculture.