Pupils from the "F.P. Lumbier" school have analyzed the quality of the water of both rivers crossing Lumbier: Salazar river and Irati river.

1. WATER OFWATER OF
OUR RIVERSOUR RIVERS
Salazar river
and
Irati river

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

3. - 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

4. - 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…

5. STUDY OF
WATER
TURBIDITY
TEMPERATURE
DISSOLVED OXYGEN
PERCENTAGE OF OXYGEN
SATURATION
pH
NITRATES
HARDNESS

6. 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

7. TEMPERATU
REAbrupt 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
WATERS +
COLD
MORE
BIODIVERSITY
MORE O2

8. 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.
suitable
harmful
lethal
DISSOLVED
OXYGEN

9. PERCENTAGE OF
OXYGEN
SATURATION
1º. 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

10. 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
ALKALINE
EXCELENT

11. 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
Unit: ppm
4ppm. ------- clean
drinking
water
+ 40ppm. ------ non-
potable
water

12. 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
Unit: ppm

13. Soft water ( 0 –
75 )
Moderately hard water ( 75 –
150 )
Hard water ( 150
– 300 )
Too hard water
Graphic of
hardness
Unit: ppm

15. After we realiced the study of
water, we obtained the
following results.