Table 1. Maximum Concentrations of Selected Contaminants Detected in On-Site Soils at Levels Approaching or Exceeding Comparison Values,
Lightman Drum Company Site, October 1990.
Volatile Organic Compounds
Maximum (mg/kg)
Comparison Values(mg/kg)*
Soil Depth (ft)
Ethylbenzene
1,210
5,000 RMEG child
8-17
Tetrachloroethylene
83.1
500 RMEG child
8-17
Toluene
221
1000 EMEG child
8-17
Trichloroethylene
73
54 (NJ non-residential soil clean-up criteria)
8-17
Xylenes (total)
8,190
10,000 EMEG child
8-17
Semi-volatile Organic Compounds
Bis (2-Ethylhexyl) Phthalate
18
50 CREG
0.5-2
1,2-Diphenylhydrazine
1.94
0.9 CREG
8-17
Metals
Antimony
10
20 RMEG child
0.5-2
Arsenic
14
0.5 CREG
0.5-2
Cadmium
8.5
10 EMEG child
0.5-2
Silver
70
300 RMEG child
0.5-2
Pesticides/PCBs
Beta-BHC
0.083
-
0.5-2
Gamma chlordane
1.23
30 EMEG child
0.5-2
* Comparison Values: ATSDR Soil Comparison Values, unless otherwise noted
EMEG: Environmental Media Evaluation Guide
CREG: Cancer Risk Evaluation Guide
RMEG: Reference Dose Media Evaluation Guide
Table 2. Maximum Concentration of Selected Contaminants
Detected in On-Site Monitoring Wells at Levels Above Drinking Water Standards,
Lightman Drum Company Site, October 1990.
Volatile Organic Compounds
Maximum (µg/l)
Comp. Value (NJ MCL**) (µg/l)
Methylene Chloride
1,400
3
Acetone
1,020
-
1,2-trans-dichloroethylene
390
100
1,1,1-trichloroethane
454
30
Trichloroethylene
4,900
1
Tetrachloroethylene
2,010
1
Chlorobenzene
219
50
1,2-dichloroethane
302
2
Benzene
10,100
1
Toluene
3,160
1,000
Ethylbenzene
4,800
700
m-xylene
19,000
1,000
o,p-xylenes
22,500
1,000
Metals
Cadmium
17
5
Chromium
1,110
100
Iron
77,500
300+
Manganese
340
50+
** New Jersey Maximum Contaminant Levels + Secondary drinking water standards (primarily aesthetic)
Table 3. Concentrations of Selected VOCs and Semi VOCs Detected
in Five On-Site Monitoring Wells, Lightman Drum Site, Collected November 5,
1999.
Sample #
MW 3
MW 9
MW 10
MW 5
MW 2
Maximum
MCL* (NJ)
Volatile Organic Compounds (µg/l)
Acetone
38
ND
19
ND
ND
38
-
1,1-Dichloroethylene
ND
ND
8
ND
ND
8
2
Chloroform
ND
ND
4
2
ND
4
-
1,1,1-Trichloroethane
6
ND
110
2
190
190
30
Trichloroethylene
54
ND
2,300
37
3,500
3,500
1
1,1,2-Trichloroethane
ND
ND
6
ND
ND
6
3
Benzene
ND
ND
120
ND
ND
120
1
Tetrachloroethylene
110
ND
1,500
130
2,800
2,800
1
Toluene
3
ND
400
ND
920
920
1,000
Chlorobenzene
6
ND
43
ND
87
87
50
Ehylbenzene
ND
ND
410
ND
3,900
3,900
700
Xylene (total)
6
ND
2,900
ND
43,000
43,000
1,000
cis-1,2-Dichloroethylene
270
ND
890
ND
590
890
70
Semi-volatile Organic Compounds
(µg/l)
Phenol
ND
ND
5
ND
5
5
-
1,3-Dichlorobenzene
ND
ND
4
ND
13
13
600
1,4-Dichlorobenzene
3
ND
8
ND
44
44
75
1,2-Dichlorobenzene
ND
ND
6
ND
28
28
600
2-Methylphenol
ND
ND
5
ND
12
12
-
4-Methylphenol
ND
ND
14
ND
20
20
-
2,4-Dimethylphenol
ND
ND
10
ND
150
150
-
1,2,4-Trichlorobenzene
4
ND
13
ND
110
110
9
Naphthalene
ND
ND
ND
ND
4
4
300
2-Methylnaphthalene
ND
ND
ND
ND
1
1
-
* New Jersey Maximum Contaminant
Levels
- MCL not available
ND: Not detected
Table 4. Compounds detected from monitoring well samples
exceeding New Jersey Maximum Concentration Levels (NJ MCL) at the Lightman Drum
Site (USEPA, July 2000).
Compounds
Maximum Concentration Levels (µg/L) and Well
Number
New Jersey Maximum Contaminant Level (µg/L)
Benzene
1800 (MW-08A)
0.2
cis-1,2-Dichloroethene
2400 (MW-02)
10
Trichloroethene
2500 (MW-02)
1
Tetrachloroethene
3700 (MW-02)
0.4
Toluene
1400J (MW-02)
1000
Ethylbenzene
4600 (MW-02)
700
Xylenes (total)
60000 (MW-02)
40
bis(2-Chloroethyl)ether
130 (MW-02)
0.03
2,4-Dimethylphenol
250 (MW-02)
100
bis(2-Ethylhexyl)phthalate
5 (MW-08A and MW-08B)
3
Aluminum
3340J (MW-09)
200
Beryllium
0.37J (MW-09 and MW-10)
0.008
Cadmium
37.1 (MW-03)
4
Manganese
270J (MW-02)
50
Thallium
5.3J (MW-02)
0.5
J = estimated value.
ATSDR PLAIN LANGUAGE GLOSSARY OF ENVIRONMENTAL HEALTH TERMS
Absorption:
How a chemical enters a person's blood after the chemical has been swallowed,
has come into contact with the skin, or has been breathed in.
Acute Exposure:
Contact with a chemical that happens once or only for a limited period of
time. ATSDR defines acute exposures as those that might last up to 14 days.
Additive Effect:
A response to a chemical mixture, or combination of substances, that might
be expected if the known effects of individual chemicals, seen at specific
doses, were added together.
Adverse Health Effect:
A change in body function or the structures of cells that can lead to disease
or health problems.
Antagonistic Effect:
A response to a mixture of chemicals or combination of substances that is
less than might be expected if the known effects of individual chemicals,
seen at specific doses, were added together.
ATSDR:
The Agency for Toxic Substances and Disease
Registry. ATSDR is a federal health agency in Atlanta, Georgia that
deals with hazardous substance and waste site issues. ATSDR gives people information
about harmful chemicals in their environment and tells people how to protect
themselves from coming into contact with chemicals.
Background Level:
An average or expected amount of a chemical in a specific environment. Or,
amounts of chemicals that occur naturally in a specific environment.
Biota:
Used in public health, things that humans would eat - including animals,
fish and plants.
CAP:
See Community Assistance Panel.
Cancer:
A group of diseases which occur when cells in the body become abnormal and
grow, or multiply, out of control
Carcinogen:
Any substance shown to cause tumors or cancer in experimental studies.
CERCLA:
See Comprehensive Environmental Response, Compensation,
and Liability Act.
Chronic Exposure:
A contact with a substance or chemical that happens over a long period of
time. ATSDR considers exposures of more than one year to be chronic.
Completed Exposure Pathway:
See Exposure Pathway.
Community Assistance Panel (CAP):
A group of people from the community and health and environmental agencies
who work together on issues and problems at hazardous waste sites.
Comparison Value (CVs):
Concentrations or the amount of substances in air, water, food, and soil
that are unlikely, upon exposure, to cause adverse health effects. Comparison
values are used by health assessors to select which substances and environmental
media (air, water, food and soil) need additional evaluation while health
concerns or effects are investigated.
Comprehensive Environmental Response, Compensation, and Liability Act
(CERCLA):
CERCLA was put into place in 1980. It is also known as Superfund.
This act concerns releases of hazardous substances into the environment, and
the cleanup of these substances and hazardous waste sites. ATSDR was created
by this act and is responsible for looking into the health issues related
to hazardous waste sites.
Concern:
A belief or worry that chemicals in the environment might cause harm to
people.
Concentration:
How much or the amount of a substance present in a certain amount of soil,
water, air, or food.
Contaminant:
See Environmental Contaminant.
Delayed Health Effect:
A disease or injury that happens as a result of exposures that may have
occurred far in the past.
Dermal Contact:
A chemical getting onto your skin. (see Route of Exposure).
Dose:
The amount of a substance to which a person may be exposed, usually on a
daily basis. Dose is often explained as "amount of substance(s) per body weight
per day".
Dose / Response:
The relationship between the amount of exposure (dose) and the change in
body function or health that result.
Duration:
The amount of time (days, months, years) that a person is exposed to a chemical.
Environmental Contaminant:
A substance (chemical) that gets into a system (person, animal, or the environment)
in amounts higher than that found in Background Level, or what would
be expected.
Environmental Media:
Usually refers to the air, water, and soil in which chemical of interest
are found. Sometimes refers to the plants and animals that are eaten by humans.
Environmental Media is the second part of an Exposure Pathway.
U.S. Environmental Protection Agency (EPA):
The federal agency that develops and enforces environmental laws to protect
the environment and the public's health.
Epidemiology:
The study of the different factors that determine how often, in how many people, and in which people will disease occur.
Exposure:
Coming into contact with a chemical substance.(For the three ways people
can come in contact with substances, see Route of Exposure.)
Exposure Assessment:
The process of finding the ways people come in contact with chemicals, how
often and how long they come in contact with chemicals, and the amounts of
chemicals with which they come in contact.
Exposure Pathway:
A description of the way that a chemical moves from its source (where it
began) to where and how people can come into contact with (or get exposed
to) the chemical.
ATSDR defines an exposure pathway as having 5 parts:
Source of Contamination,
Environmental Media and Transport Mechanism,
Point of Exposure,
Route of Exposure; and,
Receptor Population.
When all 5 parts of an exposure pathway are present, it is called a Completed
Exposure Pathway. Each of these 5 terms is defined in this Glossary.
Frequency:
How often a person is exposed to a chemical over time; for example, every
day, once a week, twice a month.
Hazardous Waste:
Substances that have been released or thrown away into the environment and,
under certain conditions, could be harmful to people who come into contact
with them.
Health Effect:
ATSDR deals only with Adverse Health Effects (see definition in this
Glossary).
Indeterminate Public Health Hazard:
The category is used in Public Health Assessment documents for sites where
important information is lacking (missing or has not yet been gathered) about
site-related chemical exposures.
Ingestion:
Swallowing something, as in eating or drinking. It is a way a chemical can
enter your body (See Route of Exposure).
Inhalation:
Breathing. It is a way a chemical can enter your body (See Route of Exposure).
LOAEL:
Lowest Observed Adverse Effect Level.
The lowest dose of a chemical in a study, or group of studies, that has caused
harmful health effects in people or animals.
Malignancy:
See Cancer.
MRL:
Minimal Risk Level. An estimate of daily human exposure
- by a specified route and length of time -- to a dose of chemical that is
likely to be without a measurable risk of adverse, noncancerous effects. An
MRL should not be used as a predictor of adverse health effects.
NPL:
The National Priorities List. (Which is part of Superfund.)
A list kept by the U.S. Environmental Protection Agency (EPA) of the most
serious, uncontrolled or abandoned hazardous waste sites in the country. An
NPL site needs to be cleaned up or is being looked at to see if people can
be exposed to chemicals from the site.
NOAEL:
No Observed Adverse Effect Level. The
highest dose of a chemical in a study, or group of studies, that did not cause
harmful health effects in people or animals.
No Apparent Public Health Hazard:
The category is used in ATSDR's Public Health Assessment documents for
sites where exposure to site-related chemicals may have occurred in the past
or is still occurring but the exposures are not at levels expected to cause
adverse health effects.
No Public Health Hazard:
The category is used in ATSDR's Public Health Assessment documents for sites
where there is evidence of an absence of exposure to site-related chemicals.
PHA:
Public Health Assessment. A report or document that
looks at chemicals at a hazardous waste site and tells if people could be
harmed from coming into contact with those chemicals. The PHA also tells if
possible further public health actions are needed.
Plume:
A line or column of air or water containing chemicals moving from the source
to areas further away. A plume can be a column or clouds of smoke from a chimney
or contaminated underground water sources or contaminated surface water (such
as lakes, ponds and streams).
Point of Exposure:
The place where someone can come into contact with a contaminated environmental
medium (air, water, food or soil). For examples:
the area of a playground that has contaminated dirt, a contaminated spring
used for drinking water, the location where fruits or vegetables are grown
in contaminated soil, or the backyard area where someone might breathe contaminated
air.
Population:
A group of people living in a certain area; or the number of people in a
certain area.
PRP:
Potentially Responsible Party. A company, government
or person that is responsible for causing the pollution at a hazardous waste
site. PRP's are expected to help pay for the clean up of a site.
Public Health Assessment(s):
See PHA.
Public Health Hazard:
The category is used in PHAs for sites that have certain physical features
or evidence of chronic, site-related chemical exposure that could result in
adverse health effects.
Public Health Hazard Criteria:
PHA categories given to a site which tell whether people could be harmed
by conditions present at the site. Each are defined in the Glossary. The categories
are:
Urgent Public Health Hazard
Public Health Hazard
Indeterminate Public Health Hazard
No Apparent Public Health Hazard
No Public Health Hazard
Receptor Population:
People who live or work in the path of one or more chemicals, and who could
come into contact with them (See Exposure Pathway).
Reference Dose (RfD):
An estimate, with safety factors (see safety factor) built in, of
the daily, life-time exposure of human populations to a possible hazard that
is not likely to cause harm to the person.
Route of Exposure:
The way a chemical can get into a person's body. There are three exposure
routes:
- breathing (also called inhalation),
- eating or drinking (also called ingestion), and
- or getting something on the skin (also called dermal contact).
Safety Factor:
Also called Uncertainty Factor. When scientists don't have enough
information to decide if an exposure will cause harm to people, they use "safety
factors" and formulas in place of the information that is not known. These
factors and formulas can help determine the amount of a chemical that is not
likely to cause harm to people.
SARA:
The Superfund Amendments and Reauthorization Act
in 1986 amended CERCLA and expanded the health-related responsibilities of
ATSDR. CERCLA and SARA direct ATSDR to look into the health effects from chemical
exposures at hazardous waste sites.
Sample Size:
The number of people that are needed for a health study.
Sample:
A small number of people chosen from a larger population (See Population).
Source (of Contamination):
The place where a chemical comes from, such as a landfill, pond, creek,
incinerator, tank, or drum. Contaminant source is the first part of an Exposure
Pathway.
Special Populations:
People who may be more sensitive to chemical exposures because of certain
factors such as age, a disease they already have, occupation, sex, or certain
behaviors (like cigarette smoking). Children, pregnant women, and older people
are often considered special populations.
Statistics:
A branch of the math process of collecting, looking at, and summarizing
data or information.
Superfund Site:
See NPL.
Survey:
A way to collect information or data from a group of people (population).
Surveys can be done by phone, mail, or in person. ATSDR cannot do surveys
of more than nine people without approval from the U.S. Department of Health
and Human Services.
Synergistic effect:
A health effect from an exposure to more than one chemical, where one of
the chemicals worsens the effect of another chemical. The combined effect
of the chemicals acting together are greater than the effects of the chemicals
acting by themselves.
Toxic:
Harmful. Any substance or chemical can be toxic at a certain dose (amount).
The dose is what determines the potential harm of a chemical and whether it
would cause someone to get sick.
Toxicology:
The study of the harmful effects of chemicals on humans or animals.
Tumor:
Abnormal growth of tissue or cells that have formed a lump or mass.
Uncertainty Factor:
See Safety Factor.
Urgent Public Health Hazard:
This category is used in ATSDR's Public Health Assessment documents for
sites that have certain physical features or evidence of short-term (less
than 1 year), site-related chemical exposure that could result in adverse
health effects and require quick intervention to stop people from being exposed.