The metropolis of La Paz and El Alto, Bolivia, is living on the edge of multiple water crises. Water suppliers struggle to keep pace with its rapid population growth. Its overall supply is dependent on glacial melt water, which may not survive the 21st century (as covered previously on this blog: “Bolivia’s current water crisis is the tip of a melting iceberg”). And the cities’ principal river, the Choqueyapu, is a site of dramatic pollution.
This last issue is the subject of Choqueyapu: Un río enfermo que nos alimenta (Choqueyapu: A sick river that feeds us). Bolivian newspaper Página Siete has re-released one of its most important investigative pieces of 2017 in an online comic-book format. The narrative follows a drop of glacial meltwater as it travels past industrial sites, through the city center, and out to the vegetable and fruit-growing fields that lie downstream of the city. There, farmer Eugenia Mamani explains how her downstream community has adapted: “In the early morning the clean water comes” (because polluting industries and the slaughterhouse aren’t operating). “We irrigate from 3am onwards; during the day it comes in dirty and we no longer use it. We have to make sacrifices [to make] our products.”
La Paz’s water pollution has many causes, from industrial waste to the riverside slaughterhouse to urban runoff to mining waste to inadequate water treatment. It all ends up flowing downstream. As the comic and other reporting shows, solutions like pollution inspectors, slaughterhouse modernization, and a new water treatment plant are all behind schedule. One of the few public works that affects the river, the culverting of its downtown segment in 2008 (see above photo), has only added to its problems by creating de-oxygenated segment right in the middle of its flow.
Like many environmental matters, this is a slow-motion crisis with no end in sight.
One thought on “La Paz’s water pollution crisis, as retold by comic book artists”
Thecolorimetric water analyzer
performs photometric absorption measurements in the visible light range. With differential absorbance colorimetry (DAC)