WATER OF WATER OF OUR OUR

RIVERSRIVERSSalazar river

andIrati river

Lumbier is a small spanish village located in Navarra. Here we can find one of the most turistic places of the zone; Lumbier Canyon.

- Salazar river: It crosses Arbayun Canyon and It falls into Irati river.

- Irati river: It´s one of the most large of Navarra. (90km.) Its good conservation makes a lot of fishing reserves. It Could be the river most used to hydroelectric power. It crosses Lumbier Canyon and It falls into Aragon river.

RIVERS

- Both canyons have been declared as Special Areas of Conservation to protect the representative habitats of Navarra.

- It´s very important to preserve the quality of its waters. The water is threatened by pollution, industries… That’s the reason why an international educational programme ( World Water Monitorying Day ) was created in 2002 to promote its protection through participation of citizens.- The project provides to participants the necessary tools to analyse the conditions of our rivers, lakes…

STUDY OF WATER

TURBIDITYTEMPERATUREDISSOLVED OXYGENPERCENTAGE OF OXYGEN SATURATIONpHNITRATESHARDNESS

TURBIDITY(JTU) (Jackson Turbidity

Unit) Water particles

- Absorb the sun´s heat and they make the water more warm.- Block alagaes photosynthesis.1º. We paste the

sticker on the bottom of the bottle.2º. We fill the container to outside line.3º. We compare the result with the graphic. ( If the water is clear, (0 JTU) the sticker looks better )

TEMPERATUREAbrupt changes in temperature may indicate

problems such as industries discharges that have an effect on biodiversity.1º. There are two thermomether stickers into the container.

2º. We wait for the stickers turn color and we note the results.

WATERS + COLD

MORE BIODIVERSITY

MORE O2

Unit: ppm. = ( mg./L.) - It´s essencial to photosyntesis processes and descomposition of organisms when die.1º. We fill the little tube immersing in the sample.2º. We close it and we dissolve the tablets by shaking the tube.3º.We wait for 5m. until It turns color and we compare with the graphic.

5- 6 ppm. 3 ppm.2 ppm.

suitableharmfullethal

DISSOLVED OXYGEN

PERCENTAGE OF OXYGEN

SATURATION1º. We locate the data of temperature and dissolved oxygen in the graphic.

2º. The result will appear in the appropiate cell.

- 40%

Unit: ppm

BAD CONDITIONS

+ 110% UNBALANC

E CAUSED FOR THE AMOUNT OF ALGAES

pH• It indicates acitdity of the water.• Might be affected by the type of the rock, the

acid rain…

1º. We fill the test tube 10mL. with the water sample.2º.We pour a pill testabs for measuring the pH.3º. We shake until It has completely dissolved.4º.We compare the result with the graphic.

ACID ALKALIN

E

EXCELENT

NITRATES• Altough they´re nutrients for the plants, their

consumption can be harmful for the humans and It´s especially toxic for children.

1º. We fill 5mL. the same tube of pH.2º. We introduce a pill to analyse nitrates nº1 (2799) and we shake it until has dissolved.3º. We introduced the pill nº2 (NN-37033) and we shake it too.4º. We wait for 5m. and then we compare the result with the graphic.

Unit: ppm

4ppm. ------- clean drinking water

+ 40ppm. ------ non- potable water

HARDNESS• It´s the amount of calcium and magnesium

dissolved in the water.• It´s not toxic for the humans or enviroment

but It´s produces obstructions of the pipes.1º.We fill 50mL. The sample tube.2º. We introduce tablets to meausere the hardness of the water until dissolution´s color turns blue.3º. We multiply the numbers of pills by 40 and then we compare the result with the grafic.

Unit: ppm

Soft water ( 0 – 75 ) Moderately hard water ( 75 – 150 ) Hard water ( 150 – 300 )Too hard water ( +300 )

Graphic of hardness

Unit: ppm

After we realiced the study of water, we obtained the

following results.