Alligator Rivers region regional surface water quality monitoring : November 1978 - April 1981
Alligator Rivers Region - Regional Surface Water Quality Monitoring, Volumes 1,2,3 (Plus draft)
Northern Territory. Department of Transport and Works. Water Division, Environmental Section
E-Publications; E-Books; PublicationNT; Report ; 49/1983
1983-04-01
At head of title: Water Division, Dept. of Transport & Works, Northern Territory. "April 1983".
English
Water quality -- Northern Territory -- Alligator Rivers Region; Hydrology -- Northern Territory -- Alligator Rivers Region
Northern Territory Government
Darwin
Report ; 49/1983
3 volumes. ; 30 cm
application/pdf
Attribution International 4.0 (CC BY 4.0)
Northern Territory Government
https://creativecommons.org/licenses/by/4.0
https://hdl.handle.net/10070/672725 [Alligator Rivers region regional surface water quality monitoring : November 1978 - April 1981 - WRD83049_v_1.pdf]; https://hdl.handle.net/10070/672727 [Alligator Rivers region regional surface water quality monitoring : November 1978 - April 1981 - WRD83049_v_2.pdf]; https://hdl.handle.net/10070/672729 [Alligator Rivers region regional surface water quality monitoring : November 1978 - April 1981 - WRD83049_v_3.pdf]
https://hdl.handle.net/10070/229664
https://hdl.handle.net/10070/672725
https://hdl.handle.net/10070/672729; https://hdl.handle.net/10070/672727
Technical Report WRD83049 Viewed at 14:07:10 on 29/07/2010 Page 33 of 440. I I I I I I I I I I I I I I I I I I I I Phosphate (all foons) Total i=n 32. TABLE 6. 3 (oont.) METHOD EXPECI'ED ACCURACY U.S.E.P.A. Cinci..n.natti, Ohio. Asrorbic 0.02 mg/1 acid reduction rrethod after evaFOration with acid and r;ersulphate to oonvert other phosphorus OJiufCOands to phosphate. Method also listed as 425F in APHA. APHA - 310A, 4b Phenanthroline 0.02 mg/1 spectrophotorretric method. Atomic absorption after 10 fold oon~~tration by evaporation. 0.01 mg/1 Ferric iron is detennined by difference (Total iron - ferrous i=n) F'luoride Silica Arsenic NJTE: APHA - 414B Selective ion electrode 0. 02 mg/1 in tha range found APHA - 426C Spectrophotometric +4% HeteWFOlY Blue rrethod and Technioon II ~Jet.h.od 186-721-i using the heteroFOlY blue reaction. Atomic absorption - Gaseous hydride 10% Jrethod using sodium borohydride APH.'I. references are taken from 14th edition 1976. Total organic carbon Dohrmann 1 ng/1 1 mg/1 Dissolv'>ed organic carbon Chlorophyll a Pheor:hr.in a +1 mg/m3
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