Stromová štruktúra MeSH - smog

[d20.633.875]

• mixtúry komplexné [d20] +
  • častice pevné [d20.633] +
    • popol uhoľný [d20.633.110]
    • prach [d20.633.222] +
    • smog [d20.633.875]
    • dym [d20.633.937] +