environmental
  (a.)環境的,環境產生的
  en·vi·ron·men·tal /-ˌvaɪrənˈmɛntḷ, ˌvaɪ(ə)rn-/ 形容詞
  環境的,周圍的
  environmental
       adj 1: concerned with the ecological effects of altering the
              environment; "environmental pollution"
       2: of or relating to the external conditions or surroundings;
          "environmental factors"