Results 91 to 100 of about 26,538 (239)

Exposure to heptachlor: evaluation of the effects on the larval and adult epidermis of Rana kl esculenta. [PDF]

, 2008
Widely used in the past against termites and soil insects, the chlorinated insecticide heptachlor (H) is a toxic contaminant which represents a risk for both terrestrial and aquatic organisms.
BONCOMPAGNI, ELEONORA, FENOGLIO, CARLA, BARNI, SERGIO, GANDINI, CARLO, GROSSO, AMELIA, MILANESI, GLORIA ANGELA   +5 more
core   +1 more source

Epoxide-Initiated Electrophilic Cyclization of Azides:  A Novel Route for the Stereoselective Construction of Azabicyclic Ring Systems and Total Synthesis of (±)-Indolizidine 167B and 209D^†

, 2016
A novel and general method for the stereoselective construction of 5-hydroxymethyl azabicyclic ring skeletons based on epoxide initiated electrophilic cyclization of azides has been developed and applied in the synthesis of (±)-indolizidine 167B and 209D
Babu Varghese (1536379), P. Ganapati Reddy (2156320), Sundarababu Baskaran (2047483)   +2 more
core   +2 more sources

Absorption and thermal decompostion of DDT and heptachlor in canned turnip greens and roots (Brassica rapa) [PDF]

, 1968
With the increased use of insecticides, much concern has arisen concerning the safety of treated food crops due to the possible retention of the insecticide in the processed product.
Hollowell, Walter Robert
core  

Heptachlor and Heptachlor Epoxide : CAS# 76-44-8 and 1024-57-3

This fact sheet answers the most frequently asked health questions (FAQs) about heptachlor and heptachlor epoxide. For more information, call the ATSDR Information Center at 1-800-232-4636.

core  

Interactions of heptachlor (a chlorinated hydrocarbon insecticide) and soil microflora [PDF]

, 1977
The effect of heptachlor on soil microorganisms was studied under field, greenhouse, and laboratory conditions. Growth of many soil microorganisms was inhibited on culture media containing heptachlor.
Shamiyeh, Nabil B.
core  

Chlorinated Hydrocarbon Insecticide Residues in Winter Flounder, Pseudopleuronectes americanus, from the Weweantic River Estuary, Massachusetts

, 1970
Residues of DDT, heptachlor, and dieldrin were found in tissues of winter flounder, Pseudopleuronectes americanus (Walbaum), from the Weweantic River estuary, Massachusetts during 1966–67.
Cole, Charles F., Charles F. Cole, Roderick M. Smith, Smith, Roderick M.   +3 more
core   +1 more source

Modeling the Impact of Food Safety Information with No Information [PDF]

This paper aims to propose a stochastic approach to measure the time pattern of a food scare, which does not require the inclusion of additional explanatory variables such as a news index.
Mazzocchi, Mario
core  

Serum levels of organochlorine pesticides and polychlorinated biphenyls among inhabitants of Greater Metropolitan Rio de Janeiro, Brazil

Cadernos de Saúde Pública, 2002
Levels of persistent organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) were determined in the blood serum of people living and working in the urban area of greater Rio de Janeiro city.
Delgado Isabella Fernandes, Barretto Heloisa H.C., Kussumi Teresa A., Alleluia Irene Baptista, Baggio Cenira de A., Paumgartten Francisco José Roma   +5 more
doaj  

Occurrence, distribution, and tissue concentrations of organochlorine pesticides in marine sediments, bivalves, and two reef fish (Siganus sutor and Lethrinus nebulosus) from coastal waters of Unguja Island, Tanzania: baseline levels, sediment-quality screening and dietary risk

Frontiers in Marine Science
Organochlorine pesticides (OCPs) persist in tropical marine ecosystems, yet baseline data for the eastern and northern coasts of Unguja Island, Tanzania, are absent.
Hassan Hassan, Hassan Hassan, Aviti John Mmochi, Haji Mwevura Haji   +3 more
doaj   +1 more source

Relationship between Heptachlor Epoxide Concentration in Pumpkin (Cucurbita maxima) and Soil Concentration Extracted with 50% (v/v) Methanol–Water Solution

, 2019
Nobuyasu Seike, Takashi Otani
openalex   +2 more sources