ORGANIC PERSISTENT TOXIC SUBSTANCES IN SOILS, WATERS AND SEDIMENTS ALONG AN ALTITUDINAL GRADIENT AT MT. SAGARMATHA, HIMALAYAS, NEPAL

Persistent Organic Pollutants (POPs) and Polycyclic Aromatic Hydrocarbons (PAHs) are important classes of compounds of serious environmental concern. These compounds were measured in waters, sediments and soils from several high altitude sites in the Sagarmatha National Park (Nepal) and included in the Himalayan ridge.

In water samples, low-level substituted PCBs and PBDEs, along with more volatile PAHs, were the most common contaminants. In sediment and soil samples, the PCB profile was mainly composed of medium-level chlorinated congeners and significantly correlated with altitude. The PAH profile for water and soil samples showed the main contribution of pyrogenic PAHs due to emissions of solid combustion, whereas the profile for sediments indicated the main contribution of pyrogenic PAHs from gasoline emissions. The PAH levels measured in Himalayan samples must be considered as low to medium contaminated, whereas the regarded Himalayan stations can be considered undisturbed remote areas concerning PCB, PBDE and OC compounds.

 
Citation proposal
. ORGANIC PERSISTENT TOXIC SUBSTANCES IN SOILS, WATERS AND SEDIMENTS ALONG AN ALTITUDINAL GRADIENT AT MT. SAGARMATHA, HIMALAYAS, NEPAL. https://geoportal.mountaingenius.org/geonetwork/srv/api/records/0f88fb2a-a807-4b96-8854-b6c5bbfef88d
 

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File identifier
0f88fb2a-a807-4b96-8854-b6c5bbfef88d   XML
Online resource
Protocol
WWW:LINK-1.0-http--link
Protocol
WWW:DOWNLOAD-1.0-http--download
Protocol
OGC:WMS-1.1.1-http-get-map
Resource identifier
Metadata language
eng
Spatial representation type
Vector
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code
WGS 1984
 

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  • Boundaries
 

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Coupled resource
Coupled resource
 
 

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Coupled resource
Coupled resource
 
 

Keywords

Other keywords
Keywords ( Theme )
  • water , sediment , soil , persistent organic pollutant
Keywords ( Place )
  • World
 
 

Geographic coverage

N
S
E
W


 

Temporal reference

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Temporal extent
Date ( Creation )
2011-09-06T12:05:00
 

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Lineage
Denominator
100000
 

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Conformity
 

Conformity

Conformity
Conformity
 

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Restrictions on access and use

 

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Organisation name
CNR-IRSA
Email
guzzella@irsa.cnr.it
 

Responsible organization (s)

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Organisation name
CNR-IRSA
Email
guzzella@irsa.cnr.it
 

Metadata information

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Organisation name
CNR-IRSA
Email
guzzella@irsa.cnr.it
Date stamp
2011-09-06T12:12:09
Metadata language
eng
Character set
UTF8
 
 

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Conformance class 1: invocable

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Endpoint URL
Technical specification
 

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Limitation
 
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Limitation
 
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Contact for the resource
 
 

Conformance class 3: harmonized

 
 

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