Results 121 to 130 of about 952 (163)

Photodegradation of polychlorinated naphthalene in mixtures

Environmental Pollution, 2020
Abstract Solutions of technical polychlorinated naphthalene (PCN) Halowax formulations (Halowax 1014 and Halowax 1051) diluted with Milli-Q water and sealed in the Pyrex glass tubes and quartz tubes were subjected to artificial solar and natural solar irradiation under different time intervals and field conditions.
Nobuyasu Hanari, Jerzy Falandysz, Eriko Yamazaki, Nobuyoshi Yamashita   +3 more
  +4 more sources

Atmospheric Polychlorinated Naphthalenes in Ghana

Environmental Science & Technology, 2012
A nationwide monitoring of atmospheric POPs (persistent organic pollutants) was conducted in Ghana between May and July 2010, applying polyurethane foam (PUF) disk passive air samplers (PAS). Reported here are preliminary findings on PCNs, an industrial organic contaminant currently under review for possible listing under the global chemical treaty ...
Jonathan N, Hogarh, Nobuyasu, Seike, Yuso, Kobara, Shigeki, Masunaga   +3 more
openaire   +2 more sources

Discrimination between polychlorinated naphthalenes and polychlorinated biphenyls

Journal of Chromatography A, 1978
Abstract Prcedures for the discrimination between polychlorinated biphenyls (PCBs) and polychlorinated naphthalenes (PCNs) taken from the literature are discussed. It is demonstrated that the analysis of mixtures of PCBs and PCNs can conveniently be accomplished by both high-performance liquid and gas chromatography, after their conversion into the ...
U.A.Th. Brinkman, G. De Vries, A. De Kok, A.L. De Jonge   +3 more
openaire   +1 more source

Degradation of polychlorinated naphthalene by mechanochemical treatment

Chemosphere, 2013
Polychlorinated naphthalene (PCN) is a hazardous compound that is listed as a new persistent organic pollutants candidate by the United Nations Environment Program. The production, import and use of PCNs are prohibited by the Chemical Substances Control Law in Japan. PCN was milled with calcium oxide as an additive to investigate the feasibility of its
Yugo, Nomura, Sho, Aono, Takashi, Arino, Takashi, Yamamoto, Akihiko, Terada, Yukio, Noma, Masaaki, Hosomi   +6 more
openaire   +2 more sources

Polychlorinated Naphthalenes in Swedish Background Air

Environmental Science & Technology, 2004
Polychlorinated naphthalenes (PCNs) with four to eight chlorines were studied in air collected at two background stations in Sweden, one southerly and one northerly. Air was sampled with a high-volume sampler, and gas-phase adsorbents and filters were analyzed separately. The sum of TeCNs to HxCNs in the gaseous phase ranged between 1 and 10 pg/m3 with
Anna-Lena, Egebäck, Ulla, Wideqvist, Ulf, Järnberg, Lillemor, Asplund   +3 more
openaire   +2 more sources

Polychlorinated naphthalenes in urban air

Atmospheric Environment, 1997
Air samples were collected at an urban site (Chicago, IL) and a semi-urban location (Downsview, Ontario) in February and March 1995 to measure atmospheric concentrations and particle/gas partitioning of polychlorinated naphthalenes (PCN). PCNs were quantified by gas chromatography — negative-ion mass spectrometry (GC-NIMS) against Halowax 1014, a ...
Tom Harner, Terry F. Bidleman
openaire   +1 more source

Polychlorinated naphthalene concentrations in human serum caused by unintentional production and emissions, and potential effects of polychlorinated naphthalenes on thyroid hormones

Science of The Total Environment, 2022
The concentrations of 75 polychlorinated naphthalene (PCN) congeners in 95 human serum samples from the Fengjiang electronic waste dismantling area and Huangyan District in Taizhou City (Zhejiang Province, China) were determined. Thyroid hormone (FT3, FT4, TSH, and TRH) concentrations in the samples were also determined. The total PCN concentrations in
Shijie, Wang, Jingxi, Jin, Chen, Guo, Zhigang, Li, Tong, Xu, Xinyu, Wen, Jicheng, Hu, Ying, Wang, Yongjie, Wei, Jun, Jin   +9 more
openaire   +2 more sources

Vapor Pressures of the Polychlorinated Naphthalenes

Journal of Chemical & Engineering Data, 1999
The vapor pressures of the supercooled liquid PL for 17 polychlorinated naphthalene congeners were determined as a function of temperature with a gas chromatographic retention time technique. The method was calibrated with vapor pressure data for polychlorinated biphenyls (PCBs) which had been measured by other techniques.
Ying Duan Lei, Frank Wania, Wan Ying Shiu   +2 more
openaire   +1 more source

Polychlorinated Naphthalenes (PCNs)

2000
Polychlorinated naphthalenes (PCNs) have been commercially produced and used mainly in electrical devices, but also for impregnation of wood, paper and textiles to attain waterproofness, flame resistance and protection against insects, molds and fungi. Today, the PCNs are widespread in the environment and are to be regarded as an environmental problem.
Eva Jakobsson, Lillemor Asplund
openaire   +1 more source

Polychlorinated Naphthalenes and Coplanar Polychlorinated Biphenyls in Arctic Air

Environmental Science & Technology, 1998
Concentrations of polychlorinated naphthalenes (PCNs) are reported for the first time in arctic air. The data represent combined air samples from the Barents Sea (n = 2), eastern Arctic Ocean (n = 10), Norwegian Sea (n = 2), and two land-based monitoring stations at Alert, Canada (n = 5), and Dunai Island in eastern Siberia, Russia (n = 3). Values for ∑
Tom Harner, Henrik Kylin, Terry F. Bidleman, Crispin Halsall, William M. J. Strachan, Leonard A. Barrie, Phil Fellin   +6 more
openaire   +1 more source