Water quality assessment in piracicamirim creek upstream and downstream a sugar and ethanol industry through toxicity tests with cladocerans

An environmental impact study was conducted to determine the Piracicamirim's creek water quality in order to assess the influence of effluents from a sugar industry in this water body. For this, toxicity tests were performed with a water sample upstream and downstream the industry using the microcrustaceans Daphnia magna, Ceriodaphnia dubia and Ceriodaphnia silvestrii as test organisms, as well as physical and chemical analysis of water. Results showed that physical and chemical parameters did not change during the sampling period, except for the dissolved oxygen. No toxicity was observed for D. magna and reproduction of C. dubia and C. silvestrii in both sampling points. Thus, the industry was not negatively impacting the quality of this water body.

The Dumaw Creek site: a seventeenth century prehistoric Indian village and cemetery in Oceana County, Michigan / George I. Quimby.

v.56:no.1(1966)

Santa Fe National Forest (N.F.), Creek Diversity Unit timber harvest, San Miguel County : environmental impact statement.

Mode of access: Internet.

Parker Lake Muddy Boggy Creek, Coal County : environmental impact statement.

F also available in microfiche.

Top left: Paint Creek Cheese Factory, H.W. Smith, proprietor, Sec. 3, Augusta Tp. Mich. Top right: Res. of Hiram P. Thompson, Sec. 19, Augusta Tp. Mich.; Res. of Webster Childs, Sec. 15, Augusta Tp. Mich.

Augusta Township (Mich.) residences and businesses. Publication information: Chicago, Ill. : Everts & Stewart, 1874.

Big Creek monazite placers, Valley County, Idaho /

"April, 1951."

Beaver Creek monazite placer area, Valley County, Idaho /

"June 1954."

Rock Creek radioactive mineral placer area, Blaine County, Idaho /

"June 1955."

Reconnaissance of the uranium deposits of the Lockhart Canyon - Indian Creek area, San Juan County, Utah /

"May 15, 1953."

A summary of findings of the ecological survey of White Oak Creek, Roane County, Tennessee, 1950-1953 /

"Contract No. AT(40-1)-221."

Sandy Run Creek monazite placer, Rutherford County, North Carolina /

"January 1953."

Monazite placers of the Broad River and Thicketty Creek, Cherokee County, South Carolina /

"May 1955."

Hollow Creek monazite placer, Aiken County, South Carolina /

"March 1954."

Pearsol Creek monazite placer area, Valley County, Idaho /

"February 1954."

Corral Creek monazite placer area, Valley County, Idaho /

"January 1955."