PMID- 12738282
OWN - NLM
STAT- MEDLINE
DCOM- 20030905
LR  - 20190906
IS  - 0045-6535 (Print)
IS  - 0045-6535 (Linking)
VI  - 52
IP  - 4
DP  - 2003 Jul
TI  - Seasonal change of persistent organic pollutant concentrations in air at Niigata 
      area, Japan.
PG  - 683-94
AB  - The concentrations of persistent organic pollutants (POPs), such as HCB, alpha-, 
      beta-, gamma- and delta-HCH, trans- and cis-chlordane (t-CHL, c-CHL), DDE, DDD 
      and DDT, in ambient air have been measured at five sampling points in Niigata 
      area, Japan (Niigata, Maki, Tsubame, Jouzo and Yahiko) during the period from 
      September 1999 to November 2001. HCB, alpha-HCH, t-CHL and c-CHL showed higher 
      concentrations than the other chemicals in all locations. All the POPs except 
      t-CHL and c-CHL collected at urban sites of the Niigata Plain was almost the same 
      in their concentration levels. Higher concentrations of t-CHL and c-CHL in 
      residential areas should be attributed to the past usage of the chemical as a 
      termiticide. At Yahiko (remote site), most of the POPs showed lower 
      concentrations than those measured at the other sampling sites, although 
      alpha-HCH and gamma-HCH were comparable with the concentrations found at the 
      other sampling sites. All POPs except alpha-HCH and gamma-HCH tend to decrease 
      41-80% in their concentrations from 2000 to 2001. The lower POPs concentrations 
      in winter and the higher POPs concentrations in summer at every sampling point 
      can be partly explained by temperature differences. Applying the equation of the 
      logarithm of the POP partial pressure in air versus reciprocal temperature 
      (lnPa=m/T+b) to our data, linear relations were observed. HCB gave a poor 
      linearity and the smallest slope, while beta-HCH, t-CHL and c-CHL gave good 
      linearities and large slopes in the equation. The results suggest that HCB level 
      is influenced by not only the emission from terrestrial sources but the 
      global-scale background pollution. A peculiar observation is that beta-HCH 
      concentration measured in our study showed large temperature dependence, 
      indicating there could be a source of contamination in the surrounding areas.
FAU - Murayama, Hitoshi
AU  - Murayama H
AD  - Niigata Prefectural Institute of Public Health and Environmental Sciences, 314-1 
      Sowa, Niigata 950-2144, Japan. h.mura@d5.dion.ne.jp
FAU - Takase, Yuuya
AU  - Takase Y
FAU - Mitobe, Hideko
AU  - Mitobe H
FAU - Mukai, Hiroyuki
AU  - Mukai H
FAU - Ohzeki, Toshiharu
AU  - Ohzeki T
FAU - Shimizu, Ken-ichi
AU  - Shimizu K
FAU - Kitayama, Yoshie
AU  - Kitayama Y
LA  - eng
PT  - Journal Article
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Air Pollutants)
RN  - 12789-03-6 (Chlordan)
RN  - 319-84-6 (alpha-hexachlorocyclohexane)
RN  - 4M7FS82U08 (Dichlorodiphenyl Dichloroethylene)
RN  - 4Z87H0LKUY (Hexachlorobenzene)
RN  - 59NEE7PCAB (Hexachlorocyclohexane)
RN  - CIW5S16655 (DDT)
RN  - V14159DF29 (Dichlorodiphenyldichloroethane)
RN  - YM80ODM9PD (beta-hexachlorocyclohexane)
SB  - IM
MH  - Air Pollutants/*analysis
MH  - Chlordan/analysis
MH  - DDT/analysis
MH  - Dichlorodiphenyl Dichloroethylene/analysis
MH  - Dichlorodiphenyldichloroethane/analysis
MH  - Hexachlorobenzene/analysis
MH  - Hexachlorocyclohexane/analysis
MH  - Japan
MH  - *Seasons
MH  - Temperature
EDAT- 2003/05/10 05:00
MHDA- 2003/09/06 05:00
CRDT- 2003/05/10 05:00
PHST- 2003/05/10 05:00 [pubmed]
PHST- 2003/09/06 05:00 [medline]
PHST- 2003/05/10 05:00 [entrez]
AID - S004565350300105X [pii]
AID - 10.1016/s0045-6535(03)00105-x [doi]
PST - ppublish
SO  - Chemosphere. 2003 Jul;52(4):683-94. doi: 10.1016/s0045-6535(03)00105-x.