National Register Evaluation of New Orleans Drainage System, Orleans Parish, Louisiana

1999 ◽  
Author(s):  
Benjamin D. Maygarden ◽  
Jill-Karen Yakubik ◽  
Ellen Weiss ◽  
Chester Peyronnin ◽  
Kenneth R. Jones
Keyword(s):  
New Orleans ◽  
Drainage System ◽  
National Register

National Register Evaluation of Sewerage Pumping Station B New Orleans, Louisiana

1992 ◽  
Author(s):  
Susan Enzweiler ◽  
Herschel A. Franks ◽  
Ellen Weiss ◽  
Chester Peyronnin
Keyword(s):  
New Orleans ◽  
National Register ◽  
Pumping Station

Stereological Analyses of Hepatocyte Ultrastructure Monitor Arsenic Liver Burdens

1980 ◽  
Vol 38 ◽  
pp. 442-443
Author(s):  
E. M. B. Sorensen ◽  
R. R. Mitchell ◽  
L. L. Graham
Keyword(s):  
Drainage System ◽  
Water Levels ◽  
Ultrastructural Changes ◽  
Hepatocyte Ultrastructure ◽  
Lepomis Cyanellus ◽  
Large Numbers ◽  
Activation Data ◽  
Water Analyses ◽  
Municipal Lake ◽  
Green Sunfish

Endemic freshwater teleosts were collected from a portion of the Navosota River drainage system which had been inadvertently contaminated with arsenic wastes from a firm manufacturing arsenical pesticides and herbicides. At the time of collection these fish were exposed to a concentration of 13.6 ppm arsenic in the water; levels ranged from 1.0 to 20.0 ppm during the four-month period prior. Scale annuli counts and prior water analyses indicated that these fish had been exposed for a lifetime. Neutron activation data showed that Lepomis cyanellus (green sunfish) had accumulated from 6.1 to 64.2 ppm arsenic in the liver, which is the major detoxification organ in arsenic poisoning. Examination of livers for ultrastructural changes revealed the presence of electron dense bodies and large numbers of autophagic vacuoles (AV) and necrotic bodies (NB) (1), as previously observed in this same species following laboratory exposures to sodium arsenate (2). In addition, abnormal lysosomes (AL), necrotic areas (NA), proliferated rough endoplasmic reticulum (RER), and fibrous bodies (FB) were observed. In order to assess whether the extent of these cellular changes was related to the concentration of arsenic in the liver, stereological measurements of the volume and surface densities of changes were compared with levels of arsenic in the livers of fish from both Municipal Lake and an area known to contain no detectable level of arsenic.

New Orleans Still Lacks Health Care

2007 ◽  
Vol 40 (17) ◽  
pp. 1-5
Author(s):  
ALICIA AULT
Keyword(s):  
Health Care ◽  
New Orleans
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