HIROHASHI Masanao

NAKAYA Katsumi

TAKAHASHI Sankichi

TAKAHASHI Susumu

高橋 晋

English

高橋, 燦吉

3552

タカハシ, サンキチ

TAKAHASHI, Sankichi

HIROHASHI, Masanao

5987

TAKAHASHI, Susumu

5390

高橋, 晋

read_0056616

タカハシ, ススム

中谷, 勝美

3653

ナカヤ, カツミ

NAKAYA, Katsumi

Hachinohe Institute of Technology Repository / 八戸工業大学学術リポジトリ

Estirnation of]Dissolved lon Concentration in Precipitation Basedon Electric Conductivity and pH ⅣIeasureme tsSankichi TAKAHASHI*,よ/1aSanao HIROHASHI**,SuSumu TAKAHASHI*キ*and Katsumi NAKAYAキ・ キキAbstractFor the sur、′ey investigation of acid precipitation rain fall and sno、v fall,it s necessary testablish a highly accurate and easy estimating method and evaluating method of、vater―qualityapplicable commonly for the precipitation at various places in an over Japan,regardless of thedifference of rain faH or snOw fan.For this purpose,studies have been made on the estimating method of equivalent concentra‐tion ofion from pH―measured value,electric conductivity and setting of conllnon ion―mobility,erect of concentration,ion―type innuenced On the electric conductivity of、、アa er fan based on theprecipitation data of 61 cases of the prilnary suwey on acid precipitation,etc by the Environ‐mental Agency,thereby,the fon。、ァing items have been clarined(1) [H+]inauences greatly on the electric conductivity of precipitation,、vhile its influencecan be erased by standardization of precipitation pH into pH=57(2)CommOn iOn mo宙ng degree is 6 2×10~4(cm2/v.s)(3) Estimating method have been establshed for the precipitation and 、vater qualityapplcable for the precipitation in a■over J pan Of r in fa■and s o、'、アfallFt,νEυO′'S: rain and snO、v, commOn ionic mobility, total dissolved ion concentration,dissolved concentration Of each nl珂or ion,estimation1.  PrefaceInnuence of regional nature against、vater quality of the precipitation has been consideredinevitable.  It rnight be due to the insuFncient consideration to the l■+inauencing greatly on theconductivity.Accordingly,for the survey investigation of acid precipitation,it is requested to estabhshthe evaluating and estimating methods of the、vater quahty of precipitation in consideration ofthe mobility and concentration of main containing ion types such as Htt etc.In this report,erective results are described、vith the studies on the in■uence of rain faHand snowr fall,etc.by precipitation state,establshment of evaluating and estilnating rnethodsof、vater quanty of precipitation,ion―moving degree(hereinafter called“co■llnOn iOn rnobility")of precipitation apphcable commonly for precipitation at various places of all over 」apan,平成9年10月15日受理中ェネルギーエ学科・教授本率大学院工学研究科機械システムエ学専攻博士前期課程 。2年半*■ 高周波鋳造 い 。研究員半*本本ェネルギーエ学科 。技手-161-

Estimation of Dissolved Ion Concentration in Precipitation Based on Electric Conductivity and pH Measurements

https://hi-tech.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1664&item_no=1&attribute_id=22&file_no=1

Estimation of Dissolved Ion Concentration in Precipitation Based on Electric Conductivity and pH Measurements

Abstract

Similar works

Full text

Available Versions

Hachinohe Institute of Technology Repository / 八戸工業大学学術リポジトリ