The ranger Uranium mine is dangerous because 

• mining for asbestos may cause lung cancer

• tunnel mines might collapse  contaminating the environment with radioactive dust, radon gas, water-borne toxins, and increased levels of background radiation.

• The acid from leaching the uranium can affect the environment by polluted groundwater.

A major concern for Mirarr and other Bininj are the potential negative impacts on human health and the environment from the operations of the Ranger uranium mine. Over 200 spills, leaks and breaches of licence conditions have occurred in the four decades of the mine's existence. In 2013, a major accident at Ranger resulted in the spilling of over one million litres of radiactive liquid .