scholarly journals Environmental lead reduces the resilience of bald eagle populations

Author(s):  
Brenda J. Hanley ◽  
André A. Dhondt ◽  
María J. Forzán ◽  
Elizabeth M. Bunting ◽  
Mark A. Pokras ◽  
...  
1990 ◽  
Author(s):  
D.J. Varnes ◽  
D. H. Radbruch-Hall ◽  
K.L. Varnes ◽  
W.K. Smith ◽  
W.Z. Savage
Keyword(s):  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Man Fung Tsoi ◽  
Chris Wai Hang Lo ◽  
Tommy Tsang Cheung ◽  
Bernard Man Yung Cheung

AbstractLead is a heavy metal without a biological role. High level of lead exposure is known to be associated with hypertension, but the risk at low levels of exposure is uncertain. In this study, data from US NHANES 1999–2016 were analyzed. Adults with blood lead and blood pressure measurements, or self-reported hypertension diagnosis, were included. If not already diagnosed, hypertension was defined according to the AHA/ACC 2017 hypertension guideline. Results were analyzed using R statistics version 3.5.1 with sample weight adjustment. Logistic regression was used to study the association between blood lead level and hypertension. Odds ratio (OR) and 95% confidence interval (95% CI) were estimated. Altogether, 39,477 participants were included. Every doubling in blood lead level was associated with hypertension (OR [95%CI] 1.45 [1.40–1.50]), which remained significant after adjusting for demographics. Using quartile 1 as reference, higher blood lead levels were associated with increased adjusted odds of hypertension (Quartile 4 vs. Quartile 1: 1.22 [1.09–1.36]; Quartile 3 vs. Quartile 1: 1.15 [1.04–1.28]; Quartile 2 vs. Quartile 1: 1.14 [1.05–1.25]). In conclusion, blood lead level is associated with hypertension in the general population with blood lead levels below 5 µg/dL. Our findings suggest that reducing present levels of environmental lead exposure may bring cardiovascular benefits by reducing blood pressure.


2007 ◽  
Vol 26 (4) ◽  
pp. 400-408 ◽  
Author(s):  
Maqusood Ahamed ◽  
Mohd. Kaleem Javed Siddiqui

2011 ◽  
Vol 2011 (1) ◽  
Author(s):  
Maitreyi Mazumdar ◽  
David Bellinger ◽  
Matthew Gregas ◽  
Kathleen Abanilla ◽  
Janine Bacic ◽  
...  

2013 ◽  
Vol 180 ◽  
pp. 304-311 ◽  
Author(s):  
A.K. Mackay ◽  
M.P. Taylor ◽  
N.C. Munksgaard ◽  
K.A. Hudson-Edwards ◽  
L. Burn-Nunes

Author(s):  
Alexandra Kelly ◽  
Monica Seidel

This project developed a conservation biology blueprint for the Frontenac Arch Biosphere Reserve (FABR) region that can be used towards assessing current conservation practices as well as making future recommendations. The findings of the study can be used towards the Ten Year Biosphere Review for UNESCO, which the FABR submits to keep their biosphere designation. By gathering information in real time, appropriate actions can be taken much more quickly than if the information was only gathered every ten years. This means that different actors can alter their actions to preserve species diversity and success as different factors influence those species through time. For this study, seven species (bald eagle, red-headed woodpecker, common five-lined skink, black rat snake, milksnake, spotted turtle, and great blue heron) were mapped in the area between Frontenac Provincial Park and Charleston Lake Provincial Park. The black rat snake, spotted turtle, and great blue heron were specifically explored in an online survey as well. This study area was chosen on the suggestion of the FABR because it connects Crown Land with the provincial parks, making implementing any new policies easier than land found in the North-South corridor of Ontario which contains a high amount of private development. Using the predicted tree species data, county land usage, eBird data, and endangered species general distribution, this paper hopes to identify where key areas of protection are. By quickly locating hotspots for endangered species, stricter conservation regulations can be implemented to help the recovery of these species.


PEDIATRICS ◽  
1975 ◽  
Vol 56 (4) ◽  
pp. 621-622
Author(s):  
Arthur W. Kaemmer ◽  
Byron R. Johnson

Dr. Greensher and his colleagues are to be congratulated for bringing to the readers' attention a most unusual source of lead poisoning. Inasmuch as many localities are initiating city-wide lead screening programs, it is obvious that pediatricians in this country will be seeing many children with abnormally elevated blood lead levels, and in many cases diligent efforts such as this will have to be undertaken to determine the exact source of the environmental lead. biggest problems with mass screening programs for lead poisoning are well outlined by Moriarty's article.2


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