NTR 'ambient water quality'

[mark-jensen]

Usage in Indicator 6.3.2: Percentage of water bodies with good ambient water quality

@pbuttigieg Does it belong in ENVO?

[pbuttigieg]

ENVO has water body and I suppose this means:

water body and composed primarily of some (ENVO:water and has disposition some SDGIO:safe)

would that work?

[pbuttigieg]

Note that this doesn't correspond to 'ambient water quality' but rather provides the semantic needed to get to the indicator in a calculation:

If X equals: water body and composed primarily of some (ENVO:water and has disposition some SDGIO:safe)

and Y equals: water body and composed primarily of some (ENVO:water and has disposition some SDGIO:hazardous disposition)

then the indicator could be (X / Y) * 100

[mark-jensen]

@pdez90 sent this doc form UN Water. Page 17 provides specifics about what is meant by 'ambient water quality`

Proportion of water bodies (area) in a country with good ambient water quality compared to all water bodies in the country. “Good” indicates an ambient water quality that does not damage ecosystem function and human health according to core ambient water quality indicators. Water quality is estimated based on a core set of five determinands that inform on major water quality impairments present in many parts of the world: total dissolved solids (TDS); percentage dissolved oxygen (% DO); dissolved inorganic nitrogen (DIN); dissolved inorganic phosphorus (DIP); and Escherichia coli (E. coli).

Should we make the term good ambient water quality or stick with the original request?

[pdez90]

Hi

We need to stick to the original request. Thanks! On Feb 5, 2016 5:22 PM, "Mark Jensen" notifications@github.com wrote:

@pdez90 https://github.com/pdez90 sent this doc http://www.unwater.org/fileadmin/user_upload/unwater_new/docs/Goal%206_Metadata%20Compilation%20for%20Suggested%20Indicators_UN-Water_v2015-12-16.pdf form UN Water. Page 17 provides specifics about what is meant by 'ambient water quality`

Proportion of water bodies (area) in a country with good ambient water quality compared to all water bodies in the country. “Good” indicates an ambient water quality that does not damage ecosystem function and human health according to core ambient water quality indicators. Water quality is estimated based on a core set of five determinands that inform on major water quality impairments present in many parts of the world: total dissolved solids (TDS); percentage dissolved oxygen (% DO); dissolved inorganic nitrogen (DIN); dissolved inorganic phosphorus (DIP); and Escherichia coli (E. coli).

Should we make the term good ambient water quality or stick with the original request?

— Reply to this email directly or view it on GitHub https://github.com/SDG-InterfaceOntology/sdgio/issues/80#issuecomment-180376985 .

[mark-jensen]

@pbuttigieg https://en.wikipedia.org/wiki/Water_quality#Environmental_water_quality

[pbuttigieg]

@mark-jensen This is then an information artifact (the output of an OBI:assay or similar), and not a physical entity that belongs in ENVO. ENVO can host the water bodies and try to add the various parameters noted in the doc above if needed.

Recommend that ambient water quality is created in SDGIO as a subclass of OBI:value specification

It is the output of some ambient water quality assessment (subclass of OBI:assay) with an initial linkage scheme resembling:

has_specified_output some ('ambient water quality' and ('is
      about' some ((ENVO:water and 'part of' some ENVO:'water body') and (has
      role some 
      'evaluant role')))

This will, of course, need to be refined as the link between the determinands, ecosystem health, and human health is a thresholding issue and ignores (probably for feasibility) quite a lot of interactions and additional factors.

SDGIO:ambient water quality =def. a value specification about the amount of total dissolved solids (TDS); percentage dissolved oxygen (% DO); dissolved inorganic nitrogen (DIN); dissolved inorganic phosphorus (DIP); and abundance of Escherichia coli (E. coli) in a volume of water sampled from water bodies in an area. Categorical values are specified based on the impact the parameters listed above have on normal ecosystem functioning and human health.

editor's note: impact and damage to ecosystem functioning and health are difficult to define without the norm specified. This could be formulated like an increased risk of a portion of water from a water body realising its hazard disposition towards an ecosystem or living human.

I can start creating classes like DIN, DIP, and 'collection of E. coli cells in a volume of ambient water' in ENVO to refine this class.

[pbuttigieg]

@cmungall It seems that OBI's value specification is not being imported, I think something's up with my import / release process.

[mark-jensen]

@pbuttigieg A simple diagram demonstrating the proposed semantics, showing a "tagging link" to the relevant indicator. I imagine this can be enhanced. The class water quality assessment is not currently in SDGIO. I'm not sure current needs require including evaluant role. I replaced part of with derives from since the water being tested isn't technically part of the water body anymore. Although, that may be too precise for current purposes. The aboutness link should connect to the water body since that is where the sample came from. For editing: the original is zipped since GitHub won't take .vue files.

Ambient Water Quality v2.vue.zip