diff --git a/sentry_sdk/integrations/aws_lambda.py b/sentry_sdk/integrations/aws_lambda.py
index 8899cc53b2..648859a233 100644
--- a/sentry_sdk/integrations/aws_lambda.py
+++ b/sentry_sdk/integrations/aws_lambda.py
@@ -5,6 +5,7 @@
 from copy import deepcopy
 from datetime import datetime, timedelta, timezone
 from os import environ
+from urllib.parse import urlencode
 
 import sentry_sdk
 from sentry_sdk.consts import OP
@@ -120,6 +121,9 @@ def sentry_handler(aws_event, aws_context, *args, **kwargs):
         configured_time = aws_context.get_remaining_time_in_millis()
 
         with sentry_sdk.isolation_scope() as scope:
+            scope.set_transaction_name(
+                aws_context.function_name, source=TRANSACTION_SOURCE_COMPONENT
+            )
             timeout_thread = None
             with capture_internal_exceptions():
                 scope.clear_breadcrumbs()
@@ -333,7 +337,7 @@ def event_processor(sentry_event, hint, start_time=start_time):
         request["url"] = _get_url(aws_event, aws_context)
 
         if "queryStringParameters" in aws_event:
-            request["query_string"] = aws_event["queryStringParameters"]
+            request["query_string"] = urlencode(aws_event["queryStringParameters"])
 
         if "headers" in aws_event:
             request["headers"] = _filter_headers(aws_event["headers"])
@@ -373,7 +377,9 @@ def _get_url(aws_event, aws_context):
     path = aws_event.get("path", None)
 
     headers = aws_event.get("headers")
-    if headers is None:
+    # Some AWS Services (ie. EventBridge) set headers as a list
+    # or None, so we must ensure it is a dict
+    if not isinstance(headers, dict):
         headers = {}
 
     host = headers.get("Host", None)
@@ -478,7 +484,10 @@ def _prepopulate_attributes(aws_event, aws_context):
 
     for prop, attr in EVENT_TO_ATTRIBUTES.items():
         if aws_event.get(prop) is not None:
-            attributes[attr] = aws_event[prop]
+            if prop == "queryStringParameters":
+                attributes[attr] = urlencode(aws_event[prop])
+            else:
+                attributes[attr] = aws_event[prop]
 
     for prop, attr in CONTEXT_TO_ATTRIBUTES.items():
         if getattr(aws_context, prop, None) is not None:
@@ -487,7 +496,7 @@ def _prepopulate_attributes(aws_event, aws_context):
     url = _get_url(aws_event, aws_context)
     if url:
         if aws_event.get("queryStringParameters"):
-            url += f"?{aws_event['queryStringParameters']}"
+            url += f"?{urlencode(aws_event['queryStringParameters'])}"
         attributes["url.full"] = url
 
     headers = {}
diff --git a/tests/integrations/aws_lambda/test_aws.py b/tests/integrations/aws_lambda/test_aws.py
index e58fab292d..822a7a9146 100644
--- a/tests/integrations/aws_lambda/test_aws.py
+++ b/tests/integrations/aws_lambda/test_aws.py
@@ -67,6 +67,8 @@ def truncate_data(data):
 
         if data["contexts"].get("trace") is not None:
             cleaned_data["contexts"]["trace"] = data["contexts"].get("trace")
+            if cleaned_data["contexts"]["trace"].get("data", {}) != {}:
+                cleaned_data["contexts"]["trace"]["data"] = {"removed": "by truncate_data()"}
 
     if data.get("transaction") is not None:
         cleaned_data["transaction"] = data.get("transaction")
@@ -287,7 +289,8 @@ def test_handler(event, context):
             "X-Forwarded-Proto": "https"
           },
           "queryStringParameters": {
-            "bonkers": "true"
+            "bonkers": "true",
+            "wild": "false"
           },
           "pathParameters": null,
           "stageVariables": null,
@@ -312,7 +315,7 @@ def test_handler(event, context):
             "X-Forwarded-Proto": "https",
         },
         "method": "GET",
-        "query_string": {"bonkers": "true"},
+        "query_string": "bonkers=true&wild=false",
         "url": "https://iwsz2c7uwi.execute-api.us-east-1.amazonaws.com/asd",
     }
 
@@ -487,6 +490,15 @@ def test_handler(event, context):
         ),
         (b"[]", False, 1),
     ],
+    ids=[
+        "int",
+        "float",
+        "string",
+        "bool",
+        "list",
+        "list_with_request_data",
+        "empty_list",
+    ],
 )
 def test_non_dict_event(
     run_lambda_function,
@@ -539,9 +551,7 @@ def test_handler(event, context):
             "headers": {"Host": "x1.io", "X-Forwarded-Proto": "https"},
             "method": "GET",
             "url": "https://x1.io/1",
-            "query_string": {
-                "done": "f",
-            },
+            "query_string": "done=f",
         }
     else:
         request_data = {"url": "awslambda:///{}".format(function_name)}
@@ -590,7 +600,7 @@ def test_traces_sampler_gets_correct_values_in_sampling_context(
 
     import inspect
 
-    _, response = run_lambda_function(
+    function_code = (
         LAMBDA_PRELUDE
         + dedent(inspect.getsource(StringContaining))
         + dedent(inspect.getsource(DictionaryContaining))
@@ -621,7 +631,7 @@ def test_handler(event, context):
                             {
                                 "http.request.method": "GET",
                                 "url.path": "/sit/stay/rollover",
-                                "url.query": "repeat=again",
+                                "url.query": "repeat=twice",
                                 "url.full": "http://x.io/sit/stay/rollover?repeat=twice",
                                 "network.protocol.name": "http",
                                 "server.address": "x.io",
@@ -643,10 +653,15 @@ def test_handler(event, context):
                 traces_sampler=traces_sampler,
             )
         """
-        ),
-        b'{"httpMethod": "GET", "path": "/sit/stay/rollover", "query_string": {"repeat": "again"}, "headers": {"Host": "x.io", "X-Forwarded-Proto": "http", "Custom-Header": "Custom Value"}}',
+        )
     )
 
+    payload = b'{"httpMethod": "GET", "path": "/sit/stay/rollover", "queryStringParameters": {"repeat": "twice"}, "headers": {"Host": "x.io", "X-Forwarded-Proto": "http", "Custom-Header": "Custom Value"}}'
+
+    _, response = run_lambda_function(
+        code=function_code,
+        payload=payload,
+    )
     assert response["Payload"]["AssertionError raised"] is False