UVC from solar UV cannot reach the surface of the earth, because this range of UV is absorbed by ozone layer.
ແສງ UVC ຈາກແສງຕາເວັນ UV ບໍ່ສາມາດໄປເຖິງພື້ນຜິວໂລກໄດ້, ເພາະວ່າລະດັບຂອງ UV ນີ້ຖືກດູດຊຶມໂດຍຊັ້ນໂອໂຊນ.