environmental
acid mine drainage
acidic
chemical
chemistry
close up
closeup
contaminated
copper
crystal
damage
ecological
ecology
environment
geochemistry
geology
green
ground
hazard
industrial
iron sulfate
mine
mineral
mining
no people
nobody
piece
polluted
pollution
problem
pyrite
salts
soil
sulfur
sulfuric acid
sulphate
sulphide
surface
tailings
toxic
vitriol
waste
yellow
この写真素材のタグ
最近チェックした素材