Class Notes (1,100,000)
CA (650,000)
Brock U (10,000)
ESCI (200)
Lecture 7

SCIE 1P50 Lecture Notes - Lecture 7: Stockholm Convention On Persistent Organic Pollutants, Natural Resource, Lead


Department
Science
Course Code
SCIE 1P50
Professor
Caroline Starrs
Lecture
7

This preview shows half of the first page. to view the full 3 pages of the document.
SCIE 1P50 Lecture #7 Wednesday, September 28th, 2016
Stockholm Convention
International agreement with how to treat bad chemicals
Agreement to eliminate the production of certain Persistant Organic Pollutants
(POPs)
Phase out production and use of intentionally produced POPs
oReduced and where feasible eliminate releases of unintentionally
produced POPs
oClean-up old stockpiles and equipment containing POPs
oHelp the transition to safer alternatives
oIdentify other POPs for inclusion
Adopted in 2001
>156 countries signed the agreement to date
PCBs
Stop production of PCBs immediately
Stop using PCB laden equipment by 2025
Facilitate environmentally correct disposal of PCB wastes as soon as possible
and not later than 2028
Resource Use & Extraction
Non-Renewable Resources
Once you use them up, there is no more for use
Reserves – known quantities of material that can be economically recovered
from the environment
Resource – know where it is, don’t have the technology to remove it
Metallic resources
oUse so much of them
oMetals
Elements - Al, Cu, Co, Cr, Fe, Pb, Mn, Hg, Ni, Sb, Sn, U, Zn
Ores
oOres – mixtures of elements
oTypically extracted and processed to obtain certain elements such as
metals
oNon-metallic minerals & elements
P, limestone, gems, etc.
Economy Extraction
Resource extraction
Enable highly developed nations to become industrialized
75 metals & 1137 non-mental mines in Canada
Extracting Metals/Minerals
locate deposit
analyse composition
mine for metals/minerals: many different ways
find more resources at oneclass.com
find more resources at oneclass.com
You're Reading a Preview

Unlock to view full version