Watersheds intensive monitoring

We propose that a relatively small number of watershed sites be established for intensive monitoring. These sites should be selected based on the criteria for site selection discussed previously (see Section 2.1.3). In particular, these sites should be located in areas that ... 

At an intensive watershed Hg monitoring site, it is envisioned that THg and MeHgwonld be measured in ambient concentrations of atmospheric Hg species (i.e.,... 

Summary of collections and measurements of THg and MeHg that should be made at intensive watershed Hg monitoring sites... 

Hg(0), PHg, RGHg), wet deposition, throughfall, and litterfall, as discussed in the program to determine total ecosystem deposition (see Section 2.2.8). A summary of the measurements of Hg species that should be made in an intensive watershed Hg monitoring program is provided in Table 2.4. We envision that stream water measurements of total and dissolved THg and total and dissolved MeHg would also be made. 

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