A recent investigation by LAist into the contents of a popular fire retardant, MVP-Fx, revealed that manufacturers declined to disclose the specific ingredients, raising concerns about public safety. The analysis showed the presence of ammonia phosphates and trace heavy metals. Although the concentration levels of heavy metals were generally low, including critical information about cadmium and arsenic, the varying levels raised doubts about the reliability of sampling methods. There is ongoing debate regarding the environmental and health implications of fire retardants, especially as wildfires become more frequent due to climate change. Some commenters emphasized that many chemicals, including food preservatives, are not properly regulated, suggesting a need for greater scrutiny of chemical use in both firefighting and food production. The overall sentiment reflects a call for improved transparency and accountability in the use of chemicals affecting public health and safety.