Water quality of the reservoirs used for irrigation in São José dos Pinhais, Paraná State, Brazil
ABSTRACT: Land use outside its agricultural potential and low vegetation cover in the watershed impair the quality of water used for irrigation and may contribute to the spread of pathogenic coliform bacteria. The objective of this study was to relate the quality of irrigation water with the intensity and type of land use and the rainfall in a vegetable-producing region of São José dos Pinhais, Paraná. Water samples were collected monthly in 2013 from two reservoirs and one preserved source. After collection, the samples were chilled in Styrofoam boxes and transported to the laboratory for analyses of the total and thermotolerant coliforms. Effect of land use was analyzed by probability estimation trees. High land use and weekly above average rainfall increased the probability of thermo tolerant coliforms exceeding the limit allowed under legislation. In regards to thermo tolerant coliforms in the analyzed period, the water from only one reservoir was in accordance with the legislation for the quality of water to irrigate vegetables that are consumed raw. Results of this study are an alert to the local government for the necessity of environmental preservation to maintain the water quality of the county.
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Digital revista |
| Language: | English |
| Published: |
Universidade Federal de Santa Maria
2016
|
| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000400626 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
oai:scielo:S0103-84782016000400626 |
|---|---|
| record_format |
ojs |
| spelling |
oai:scielo:S0103-847820160004006262016-03-30Water quality of the reservoirs used for irrigation in São José dos Pinhais, Paraná State, BrazilJarek,Tiago MiguelSouza,Jorge Luiz Moretti deFavaretto,NerildeRuaro,Lucimeris coliform watershed land use ABSTRACT: Land use outside its agricultural potential and low vegetation cover in the watershed impair the quality of water used for irrigation and may contribute to the spread of pathogenic coliform bacteria. The objective of this study was to relate the quality of irrigation water with the intensity and type of land use and the rainfall in a vegetable-producing region of São José dos Pinhais, Paraná. Water samples were collected monthly in 2013 from two reservoirs and one preserved source. After collection, the samples were chilled in Styrofoam boxes and transported to the laboratory for analyses of the total and thermotolerant coliforms. Effect of land use was analyzed by probability estimation trees. High land use and weekly above average rainfall increased the probability of thermo tolerant coliforms exceeding the limit allowed under legislation. In regards to thermo tolerant coliforms in the analyzed period, the water from only one reservoir was in accordance with the legislation for the quality of water to irrigate vegetables that are consumed raw. Results of this study are an alert to the local government for the necessity of environmental preservation to maintain the water quality of the county.info:eu-repo/semantics/openAccessUniversidade Federal de Santa MariaCiência Rural v.46 n.4 20162016-04-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000400626en10.1590/0103-8478cr20150420 |
| institution |
SCIELO |
| collection |
OJS |
| country |
Brasil |
| countrycode |
BR |
| component |
Revista |
| access |
En linea |
| databasecode |
rev-scielo-br |
| tag |
revista |
| region |
America del Sur |
| libraryname |
SciELO |
| language |
English |
| format |
Digital |
| author |
Jarek,Tiago Miguel Souza,Jorge Luiz Moretti de Favaretto,Nerilde Ruaro,Lucimeris |
| spellingShingle |
Jarek,Tiago Miguel Souza,Jorge Luiz Moretti de Favaretto,Nerilde Ruaro,Lucimeris Water quality of the reservoirs used for irrigation in São José dos Pinhais, Paraná State, Brazil |
| author_facet |
Jarek,Tiago Miguel Souza,Jorge Luiz Moretti de Favaretto,Nerilde Ruaro,Lucimeris |
| author_sort |
Jarek,Tiago Miguel |
| title |
Water quality of the reservoirs used for irrigation in São José dos Pinhais, Paraná State, Brazil |
| title_short |
Water quality of the reservoirs used for irrigation in São José dos Pinhais, Paraná State, Brazil |
| title_full |
Water quality of the reservoirs used for irrigation in São José dos Pinhais, Paraná State, Brazil |
| title_fullStr |
Water quality of the reservoirs used for irrigation in São José dos Pinhais, Paraná State, Brazil |
| title_full_unstemmed |
Water quality of the reservoirs used for irrigation in São José dos Pinhais, Paraná State, Brazil |
| title_sort |
water quality of the reservoirs used for irrigation in são josé dos pinhais, paraná state, brazil |
| description |
ABSTRACT: Land use outside its agricultural potential and low vegetation cover in the watershed impair the quality of water used for irrigation and may contribute to the spread of pathogenic coliform bacteria. The objective of this study was to relate the quality of irrigation water with the intensity and type of land use and the rainfall in a vegetable-producing region of São José dos Pinhais, Paraná. Water samples were collected monthly in 2013 from two reservoirs and one preserved source. After collection, the samples were chilled in Styrofoam boxes and transported to the laboratory for analyses of the total and thermotolerant coliforms. Effect of land use was analyzed by probability estimation trees. High land use and weekly above average rainfall increased the probability of thermo tolerant coliforms exceeding the limit allowed under legislation. In regards to thermo tolerant coliforms in the analyzed period, the water from only one reservoir was in accordance with the legislation for the quality of water to irrigate vegetables that are consumed raw. Results of this study are an alert to the local government for the necessity of environmental preservation to maintain the water quality of the county. |
| publisher |
Universidade Federal de Santa Maria |
| publishDate |
2016 |
| url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000400626 |
| work_keys_str_mv |
AT jarektiagomiguel waterqualityofthereservoirsusedforirrigationinsaojosedospinhaisparanastatebrazil AT souzajorgeluizmorettide waterqualityofthereservoirsusedforirrigationinsaojosedospinhaisparanastatebrazil AT favarettonerilde waterqualityofthereservoirsusedforirrigationinsaojosedospinhaisparanastatebrazil AT ruarolucimeris waterqualityofthereservoirsusedforirrigationinsaojosedospinhaisparanastatebrazil |
| _version_ |
1756406369686126592 |