Environment & Ecology · Environmental Pollution - Atmospheric Trace Metals

Consider the following statements regarding trace metal contamination in atmospheric systems: I. Particulate emissions from industrial processes and vehicular exhaust may introduce trace metals such as cadmium and zinc into the atmosphere, which can later become incorporated into cloud droplets. II. Atmospheric studies over parts of the Eastern Himalayas have detected the presence of metals such as chromium in cloud water, raising concerns about potential health and ecological impacts. III. Exposure to toxic heavy metals generally poses greater health risks to children than to adults due to physiological vulnerability and developmental sensitivity. Which of the statements given above are correct?