Potential evapotranspiration (PET) is the amount of water that would be evaporated and transpired if there were sufficient water available. This demand incorporates the energy available for evaporation and the ability of the lower atmosphere to transport evaporated moisture away from the land surface.
In many cases of hospital births where the baby has passed meconium before birth, a special NICU team will be called when the baby is delivered in case there was ingestion of the meconium into the babyâs lungs. If a newborn does swallow some meconium it can lead to Meconium aspiration syndrome (MAS).
Usually, a baby has her or his first bowel movement (meconium) after birth. Sometimes, however, a baby has a bowel movement before or during birth. If this happens, the amniotic fluid released when the mother's bag of water breaks will have a greenish tint. Up to one in every five babies born after 34 weeks' gestation has meconium in the amniotic fluid. Most of the time, this is not a problem. However, if the baby is not getting enough oxygen before or during birth, she or he may take a breath and inhale some meconium. The meconium can irritate the baby's lungs and cause lung problems that are usually temporary and mild, but can be severe.