What is the meaning of "otherwise" in the following sentences?
(Source : https://www.wdef.com/tennessee-bill-seeks-to-ban-chemical-based-weather-modification/ )
According to the National Oceanic and Atmospheric Administration, cloud seeding is the injection of silver iodide into clouds via pyrotechnics. Cloud seeding is meant to create rainfall or snowfall in clouds that otherwise would not produce precipitation. It is a form of weather modification, introduced in the 1940s and 50s.
The Desert Research Institute in Nevada explains that cloud seeding “can be done from ground-based generators or aircraft.”
Long-term exposure to silver iodide may cause argyria, which turns the skin a gray or blue color, according to the CDC. They do not believe this condition to be otherwise harmful.
Is "otherwise" in the sentence mean "If their skin does not turn gray or blue, they do not believe long-term exposure to silver iodide to be harmful." ?
That is, is "otherwise" in the sentence mean "if their skin does not turn gray or blue" ?
Is "this condition" in the sentence mean "long-term exposure to silver iodide" ?