These particles have the peculiarity of penetrating the respiratory system till they reach the pulmonar alveolus. Its accumulation inside the lungs originates diseases like silicosis and asbestosis, and aggravates other conditions such as asthma and cardiovascular diseases. Materials.- Deterioration of construction materials and other surfaces. It interferes with photosynthesis. Others.- It decreases visibility and causes cloud formation.
Fires are also an important source of carbon monoxide.
It also reduces the ability of blood to carry oxygen. They are chemically unstable gases that oxidize materials faster than oxygen. Atmospheric reactions between hydrocarbons and nitrogen oxides, under sunlight influence. They aggravate respiratory and cardiovascular diseases. It deteriorates rubber, textiles and paints.