TY - JOUR
T1 - Atmospheric lead pollution of grass grown in a background area in Denmark
AU - Tjell, Jens Christian
AU - Hovmand, Mads Frederik
AU - Mosbak, Hans
PY - 1979
Y1 - 1979
N2 - LEAD in the atmosphere of the Northern Hemisphere originates mostly from lead-alkyl petrol additives emitted from car exhausts1. A small proportion of this lead-Estimated at about 10%2,3-Is deposited within 50-100 m of the road while the rest is presumably transported long distances before deposition. There are reports of increasing concentrations of lead in roadside vegetation with decreasing distance from the edge of the road 1,4,5. This apparent lead contamination ceases beyond 100-200 m from the road, and it is said therefore that airborne lead is not a significant source of lead in crops in general5-7, although there is circumstantial evidence to the contrary8,9. We report here, however, that the lead taken up by grass in a remote rural area is predominantly from the atmosphere.
AB - LEAD in the atmosphere of the Northern Hemisphere originates mostly from lead-alkyl petrol additives emitted from car exhausts1. A small proportion of this lead-Estimated at about 10%2,3-Is deposited within 50-100 m of the road while the rest is presumably transported long distances before deposition. There are reports of increasing concentrations of lead in roadside vegetation with decreasing distance from the edge of the road 1,4,5. This apparent lead contamination ceases beyond 100-200 m from the road, and it is said therefore that airborne lead is not a significant source of lead in crops in general5-7, although there is circumstantial evidence to the contrary8,9. We report here, however, that the lead taken up by grass in a remote rural area is predominantly from the atmosphere.
UR - http://www.scopus.com/inward/record.url?scp=0018332049&partnerID=8YFLogxK
U2 - 10.1038/280425a0
DO - 10.1038/280425a0
M3 - Letter
AN - SCOPUS:0018332049
SN - 0028-0836
VL - 280
SP - 425
EP - 426
JO - Nature
JF - Nature
IS - 5721
ER -