Ecosystems and Human Health - Chapter 4 potx
Ecosystems and Human Health - Chapter 4 potx
... 38 44 , 1990.
McDonald, J.C. and McDonald, A.D., Asbestos and carcinogenicity, Science, 249 , 844
(letter), 1990.
Mossman, B.T., Bignon, J., Corn, M. et al., Asbestos: scientific developments and
implications ... subject of cli-
matic, hydrologic, and ecological study for over 20 years. Records show that
both air and lake-water temperatures have increased by 2°C during this
period...
Ecosystems and Human Health - Chapter 13 potx
...
Science
, 249 , 1378–1381, 1990.
Report of the Working Group on Electric and Magnetic ELF Fields. Electric and
Magnetic Fields and Your Health. Publ. # H4 6-2 /8 9-1 40 E, Min. Supply and
Services ... G.J., and Neary, N.M., Distribution of childhood
leukemias and non-Hodgkin’s lymphomas near nuclear installations in
England and Wales,
Br. Med. J
., 309, 501–505, 19...
Ecosystems and Human Health - Chapter 1 pptx
... such as
-NH
2
, -OH, -SH, or -COOH. The oxidation reactions include N- and
O-dealkylations, side-chain and aromatic hydroxylations, N-oxidation and
hydroxylation, sulfoxide formation, and desulfuration. ... environmental hazards — both man-
made and natural — and with the risks to human health that they pose. It is
designed such that topics are generally introduced in the...
Ecosystems and Human Health - Chapter 2 pps
... detecting one breast cancer
through annual mammography in 4 0- to 50-year-old women has been esti-
mated at $ 144 ,000. In the 5 5- to 65-year-old group, it drops to $90,000.
Legislators are required ... risk
factor (i.e., of human origin).
Risk assessment and carcinogenesis
As already noted, this is the most complicated and least reliable area regard-
ing the prediction of...
Ecosystems and Human Health - Chapter 3 pptx
...
Chlorphenoxy acid herbicides
The chlorphenoxy acid herbicides 2 , 4- D and 2 ,4, 5-T have been widely used
on lawns and along road and railway rights-of-way. They mimic plant
growth hormones so that accelerated ... extreme and there may be short- or long-term effects
on human health. Usual disposal methods for these substances include surface
impoundments used in industry (45 –5...
Ecosystems and Human Health - Chapter 5 doc
... North America and pregnant
women are advised to avoid it.
Herbicides
This group includes 2 , 4- dichlorophenoxyacetic acid (2 , 4- D), 2 ,4, 5-trichlorophe-
noxyacetic acid (2 ,4, 5-T), and dioxins such ... 2,3,7,8-tetrachlorodibenzo-
p
-
dioxin (TCDD = dioxin). Agent Orange, used as a defoliant in Vietnam, was
equal parts of 2 ,4, -D and 2 ,4, 5,-T and contained TCDD as a...
Ecosystems and Human Health - Chapter 6 pps
... metallothioneins (MTs) based on their amino acid sequences. MT-I and
MT-II are the most widely distributed, while MT-III and MT-IV are restricted
to neuronal and squamous epithelial cells. MTs have a high affinity ... copper, mercury, and zinc. Such induction makes them important
defenses against heavy-metal poisoning, and experiments with knockout
mice have shown that the absence of...
Ecosystems and Human Health - Chapter 7 pps
... been demonstrated. The group includes toluene
(1-methylbenzene) and the xylenes (1, 2-, 1, 3-, and 1 , 4- dimethylbenzene), as
well as ethylbenzene and cumene (isopropylbenzene).
Dinitrobenzene is ... signs and symptoms resemble ethanol poisoning. After
24 hr, there may be pulmonary edema and myocardial depression; and after
48 hr, renal tubular necrosis and renal failure...
Ecosystems and Human Health - Chapter 8 pdf
... York, 1989, 42 9 44 6.
Foster, B.C. et al., Effects of Chinese herbal products on cytochrome P -4 5 0 drug
metabolism, Can. J. Infect. Dis., 11 (Suppl. B), 144 P- 145 P, 2000.
Freydberg, N. and Gortner, ... percep-
tions and beliefs regarding herbal therapies, Pharmacotherapy, 20, 83–87, 2000.
Baily-Klepser, T. and Klepser, M.E., Unsafe and potentially safe herbal therapies, Am.
J....
Ecosystems and Human Health - Chapter 9 pptx
... diquat.
O
2
N
CHCH
2
CH
3
CH
3
NO
3
OH
O
2
N
CH
3
NO
2
OH
DINOSEB
( 2-sec-buty 1 -4 , 6-dinitropheno1 )
DNOC
( 4, 6-dinitro-o-cresol )
H
3
CCH
3
NN
++
PARAQUAT DIQUAT DIBROMIDE
NN
+
+
2Br
-
©2001 CRC Press LLC
Nonspecificity
Broad-spectrum pesticides, ... 1 947 , is out of favor
because handlers may be at considerable risk for teratogenic effects,
Figure 34
Chemical structures...
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